978062928 has 20 divisors (see below), whose sum is σ = 2526662688. Its totient is φ = 326020960.

The previous prime is 978062909. The next prime is 978062929. The reversal of 978062928 is 829260879.

It is a happy number.

It is a super-2 number, since 2×978062928² = 1913214182255866368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978062929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10188108 + ... + 10188203.

Almost surely, 2^978062928 is an apocalyptic number.

It is an amenable number.

978062928 is an abundant number, since it is smaller than the sum of its proper divisors (1548599760).

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

978062928 is a wasteful number, since it uses less digits than its factorization.

978062928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20376322 (or 20376316 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 978062928 is about 31273.9976338171. The cubic root of 978062928 is about 992.6335107507.

The spelling of 978062928 in words is "nine hundred seventy-eight million, sixty-two thousand, nine hundred twenty-eight".