647590248 has 128 divisors (see below), whose sum is σ = 1966464000. Its totient is φ = 196577280.

The previous prime is 647590241. The next prime is 647590249. The reversal of 647590248 is 842095746.

It is a happy number.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (647590241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110988 + ... + 116676.

It is an arithmetic number, because the mean of its divisors is an integer number (15363000).

Almost surely, 2^647590248 is an apocalyptic number.

647590248 is a gapful number since it is divisible by the number (68) 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 647590248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983232000).

647590248 is an abundant number, since it is smaller than the sum of its proper divisors (1318873752).

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

647590248 is a wasteful number, since it uses less digits than its factorization.

647590248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5752 (or 5742 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 647590248 is about 25447.7945606294. The cubic root of 647590248 is about 865.1673072301.

The spelling of 647590248 in words is "six hundred forty-seven million, five hundred ninety thousand, two hundred forty-eight".