978089472 has 80 divisors (see below), whose sum is σ = 2895253680. Its totient is φ = 326025216.

The previous prime is 978089459. The next prime is 978089501. The reversal of 978089472 is 274980879.

978089472 is a `hidden beast` number, since 97 + 8 + 0 + 89 + 472 = 666.

It is a super-3 number, since 3×978089472³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 21553 + ... + 49200.

It is an arithmetic number, because the mean of its divisors is an integer number (36190671).

Almost surely, 2^978089472 is an apocalyptic number.

It is an amenable number.

978089472 is an abundant number, since it is smaller than the sum of its proper divisors (1917164208).

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

978089472 is an equidigital number, since it uses as much as digits as its factorization.

978089472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70780 (or 70758 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 978089472 is about 31274.4220090476. The cubic root of 978089472 is about 992.6424904816.

The spelling of 978089472 in words is "nine hundred seventy-eight million, eighty-nine thousand, four hundred seventy-two".