648465027 has 32 divisors (see below), whose sum is σ = 1025740800. Its totient is φ = 356539008.

The previous prime is 648465007. The next prime is 648465043. The reversal of 648465027 is 720564846.

It is not a de Polignac number, because 648465027 - 2¹¹ = 648462979 is a prime.

It is a super-2 number, since 2×648465027² = 841013782484221458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 648465027.

It is not an unprimeable number, because it can be changed into a prime (648465007) 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, 191374 + ... + 194732.

It is an arithmetic number, because the mean of its divisors is an integer number (32054400).

Almost surely, 2^648465027 is an apocalyptic number.

648465027 is a deficient number, since it is larger than the sum of its proper divisors (377275773).

648465027 is a wasteful number, since it uses less digits than its factorization.

648465027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715.

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 648465027 is about 25464.9764775073. The cubic root of 648465027 is about 865.5566942275.

The spelling of 648465027 in words is "six hundred forty-eight million, four hundred sixty-five thousand, twenty-seven".