668629048 has 16 divisors (see below), whose sum is σ = 1262832480. Its totient is φ = 331873728.

The previous prime is 668629033. The next prime is 668629063. The reversal of 668629048 is 840926866.

It is an interprime number because it is at equal distance from previous prime (668629033) and next prime (668629063).

It is a junction number, because it is equal to n+sod(n) for n = 668628992 and 668629010.

It is a congruent number.

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, 303936 + ... + 306127.

It is an arithmetic number, because the mean of its divisors is an integer number (78927030).

Almost surely, 2^668629048 is an apocalyptic number.

It is an amenable number.

668629048 is a deficient number, since it is larger than the sum of its proper divisors (594203432).

668629048 is a wasteful number, since it uses less digits than its factorization.

668629048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610206 (or 610202 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 668629048 is about 25857.8624019852. The cubic root of 668629048 is about 874.4367740809.

The spelling of 668629048 in words is "six hundred sixty-eight million, six hundred twenty-nine thousand, forty-eight".