647462252 has 12 divisors (see below), whose sum is σ = 1135288560. Its totient is φ = 323094096.

The previous prime is 647462237. The next prime is 647462267. The reversal of 647462252 is 252264746.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (647462237) and next prime (647462267).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156968 + ... + 161039.

It is an arithmetic number, because the mean of its divisors is an integer number (94607380).

Almost surely, 2^647462252 is an apocalyptic number.

It is an amenable number.

647462252 is a deficient number, since it is larger than the sum of its proper divisors (487826308).

647462252 is a wasteful number, since it uses less digits than its factorization.

647462252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318520 (or 318518 counting only the distinct ones).

The product of its digits is 161280, while the sum is 38.

The square root of 647462252 is about 25445.2795622292. The cubic root of 647462252 is about 865.1103034629.

The spelling of 647462252 in words is "six hundred forty-seven million, four hundred sixty-two thousand, two hundred fifty-two".