978835974 has 16 divisors (see below), whose sum is σ = 2020823040. Its totient is φ = 315753480.

The previous prime is 978835969. The next prime is 978835993. The reversal of 978835974 is 479538879.

It is a Curzon 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, 2631094 + ... + 2631465.

It is an arithmetic number, because the mean of its divisors is an integer number (126301440).

Almost surely, 2^978835974 is an apocalyptic number.

978835974 is an abundant number, since it is smaller than the sum of its proper divisors (1041987066).

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

978835974 is a wasteful number, since it uses less digits than its factorization.

978835974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262595.

The product of its digits is 15240960, while the sum is 60.

The square root of 978835974 is about 31286.3544376778. The cubic root of 978835974 is about 992.8949626690.

The spelling of 978835974 in words is "nine hundred seventy-eight million, eight hundred thirty-five thousand, nine hundred seventy-four".