978472377 has 24 divisors (see below), whose sum is σ = 1424261280. Its totient is φ = 647300160.

The previous prime is 978472373. The next prime is 978472381. The reversal of 978472377 is 773274879.

It is an interprime number because it is at equal distance from previous prime (978472373) and next prime (978472381).

It is not a de Polignac number, because 978472377 - 2² = 978472373 is a prime.

It is not an unprimeable number, because it can be changed into a prime (978472373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 835002 + ... + 836172.

It is an arithmetic number, because the mean of its divisors is an integer number (59344220).

Almost surely, 2^978472377 is an apocalyptic number.

It is an amenable number.

978472377 is a deficient number, since it is larger than the sum of its proper divisors (445788903).

978472377 is a wasteful number, since it uses less digits than its factorization.

978472377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813 (or 1810 counting only the distinct ones).

The product of its digits is 4148928, while the sum is 54.

The square root of 978472377 is about 31280.5431058989. The cubic root of 978472377 is about 992.7720076663.

The spelling of 978472377 in words is "nine hundred seventy-eight million, four hundred seventy-two thousand, three hundred seventy-seven".