978941375 has 16 divisors (see below), whose sum is σ = 1254744192. Its totient is φ = 761983200.

The previous prime is 978941347. The next prime is 978941407. The reversal of 978941375 is 573149879.

It is a de Polignac number, because none of the positive numbers 2^k-978941375 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 101207 + ... + 110456.

It is an arithmetic number, because the mean of its divisors is an integer number (78421512).

Almost surely, 2^978941375 is an apocalyptic number.

978941375 is a deficient number, since it is larger than the sum of its proper divisors (275802817).

978941375 is a wasteful number, since it uses less digits than its factorization.

978941375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211715 (or 211705 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 53.

The square root of 978941375 is about 31288.0388487358. The cubic root of 978941375 is about 992.9305996802.

The spelling of 978941375 in words is "nine hundred seventy-eight million, nine hundred forty-one thousand, three hundred seventy-five".