1648947527 has 4 divisors (see below), whose sum is σ = 1649124960. Its totient is φ = 1648770096.

The previous prime is 1648947457. The next prime is 1648947529. The reversal of 1648947527 is 7257498461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7257498461 = 4013 ⋅1808497.

It is a cyclic number.

It is not a de Polignac number, because 1648947527 - 2¹² = 1648943431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648947529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73958 + ... + 93635.

It is an arithmetic number, because the mean of its divisors is an integer number (412281240).

Almost surely, 2^1648947527 is an apocalyptic number.

1648947527 is a deficient number, since it is larger than the sum of its proper divisors (177433).

1648947527 is an equidigital number, since it uses as much as digits as its factorization.

1648947527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177432.

The product of its digits is 3386880, while the sum is 53.

The square root of 1648947527 is about 40607.2349095577. The cubic root of 1648947527 is about 1181.4144503015.

The spelling of 1648947527 in words is "one billion, six hundred forty-eight million, nine hundred forty-seven thousand, five hundred twenty-seven".