1678933972 has 24 divisors (see below), whose sum is σ = 3032557920. Its totient is φ = 812914080.

The previous prime is 1678933939. The next prime is 1678933981. The reversal of 1678933972 is 2793398761.

It is a happy number.

It is a congruent number.

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, 37279 + ... + 68902.

It is an arithmetic number, because the mean of its divisors is an integer number (126356580).

Almost surely, 2^1678933972 is an apocalyptic number.

It is an amenable number.

1678933972 is a deficient number, since it is larger than the sum of its proper divisors (1353623948).

1678933972 is a wasteful number, since it uses less digits than its factorization.

1678933972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106311 (or 106309 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 55.

The square root of 1678933972 is about 40974.7967902222. The cubic root of 1678933972 is about 1188.5328934123.

The spelling of 1678933972 in words is "one billion, six hundred seventy-eight million, nine hundred thirty-three thousand, nine hundred seventy-two".