973868778 has 32 divisors (see below), whose sum is σ = 2238782400. Its totient is φ = 313428528.

The previous prime is 973868759. The next prime is 973868801. The reversal of 973868778 is 877868379.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309376 + ... + 312507.

It is an arithmetic number, because the mean of its divisors is an integer number (69961950).

Almost surely, 2^973868778 is an apocalyptic number.

973868778 is an abundant number, since it is smaller than the sum of its proper divisors (1264913622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

973868778 is a wasteful number, since it uses less digits than its factorization.

973868778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621923 (or 621917 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 63.

The square root of 973868778 is about 31206.8706857961. The cubic root of 973868778 is about 991.2126004589.

The spelling of 973868778 in words is "nine hundred seventy-three million, eight hundred sixty-eight thousand, seven hundred seventy-eight".