1027647660 has 96 divisors (see below), whose sum is σ = 3104160192. Its totient is φ = 252518400.

The previous prime is 1027647641. The next prime is 1027647679. The reversal of 1027647660 is 667467201.

It is an interprime number because it is at equal distance from previous prime (1027647641) and next prime (1027647679).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 855060 + ... + 856260.

It is an arithmetic number, because the mean of its divisors is an integer number (32335002).

Almost surely, 2^1027647660 is an apocalyptic number.

1027647660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1027647660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552080096).

1027647660 is an abundant number, since it is smaller than the sum of its proper divisors (2076512532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1027647660 is a wasteful number, since it uses less digits than its factorization.

1027647660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323 (or 2321 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 1027647660 is about 32056.9440215377. The cubic root of 1027647660 is about 1009.1322350799.

The spelling of 1027647660 in words is "one billion, twenty-seven million, six hundred forty-seven thousand, six hundred sixty".