978090704 has 10 divisors (see below), whose sum is σ = 1895050770. Its totient is φ = 489045344.

The previous prime is 978090691. The next prime is 978090739. The reversal of 978090704 is 407090879.

978090704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 867420304 + 110670400 = 29452^2 + 10520^2 .

It is a super-2 number, since 2×978090704² = 1913322850502431232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30565319 + ... + 30565350.

It is an arithmetic number, because the mean of its divisors is an integer number (189505077).

Almost surely, 2^978090704 is an apocalyptic number.

It is an amenable number.

978090704 is a deficient number, since it is larger than the sum of its proper divisors (916960066).

978090704 is a wasteful number, since it uses less digits than its factorization.

978090704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61130677 (or 61130671 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 978090704 is about 31274.4417056484. The cubic root of 978090704 is about 992.6429072584.

The spelling of 978090704 in words is "nine hundred seventy-eight million, ninety thousand, seven hundred four".