647551102 has 12 divisors (see below), whose sum is σ = 1067656968. Its totient is φ = 294341300.

The previous prime is 647551087. The next prime is 647551117. The reversal of 647551102 is 201155746.

It is an interprime number because it is at equal distance from previous prime (647551087) and next prime (647551117).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1337674 + ... + 1338157.

It is an arithmetic number, because the mean of its divisors is an integer number (88971414).

Almost surely, 2^647551102 is an apocalyptic number.

647551102 is a deficient number, since it is larger than the sum of its proper divisors (420105866).

647551102 is a wasteful number, since it uses less digits than its factorization.

647551102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675855 (or 2675844 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 647551102 is about 25447.0254057326. The cubic root of 647551102 is about 865.1498741275.

The spelling of 647551102 in words is "six hundred forty-seven million, five hundred fifty-one thousand, one hundred two".