978078074 has 8 divisors (see below), whose sum is σ = 1467524628. Its totient is φ = 488903200.

The previous prime is 978078053. The next prime is 978078097. The reversal of 978078074 is 470870879.

978078074 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 2 ways, for example, as 905709025 + 72369049 = 30095^2 + 8507^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58667 + ... + 73470.

Almost surely, 2^978078074 is an apocalyptic number.

978078074 is a deficient number, since it is larger than the sum of its proper divisors (489446554).

978078074 is a wasteful number, since it uses less digits than its factorization.

978078074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135840.

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 978078074 is about 31274.2397829268. The cubic root of 978078074 is about 992.6386346029.

The spelling of 978078074 in words is "nine hundred seventy-eight million, seventy-eight thousand, seventy-four".