678052972 has 24 divisors (see below), whose sum is σ = 1271654496. Its totient is φ = 315520128.

The previous prime is 678052961. The next prime is 678053021. The reversal of 678052972 is 279250876.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96193 + ... + 103000.

It is an arithmetic number, because the mean of its divisors is an integer number (52985604).

Almost surely, 2^678052972 is an apocalyptic number.

It is an amenable number.

678052972 is a deficient number, since it is larger than the sum of its proper divisors (593601524).

678052972 is a wasteful number, since it uses less digits than its factorization.

678052972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199257 (or 199255 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 678052972 is about 26039.4503014177. The cubic root of 678052972 is about 878.5258428529.

The spelling of 678052972 in words is "six hundred seventy-eight million, fifty-two thousand, nine hundred seventy-two".