747668402 has 8 divisors (see below), whose sum is σ = 1207772076. Its totient is φ = 345077712.

The previous prime is 747668393. The next prime is 747668413. The reversal of 747668402 is 204866747.

It can be written as a sum of positive squares in 2 ways, for example, as 681262201 + 66406201 = 26101^2 + 8149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 14378213 + ... + 14378264.

Almost surely, 2^747668402 is an apocalyptic number.

747668402 is a deficient number, since it is larger than the sum of its proper divisors (460103674).

747668402 is a wasteful number, since it uses less digits than its factorization.

747668402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28756492.

The product of its (nonzero) digits is 451584, while the sum is 44.

The square root of 747668402 is about 27343.5257785093. The cubic root of 747668402 is about 907.6178091308.

The spelling of 747668402 in words is "seven hundred forty-seven million, six hundred sixty-eight thousand, four hundred two".