978152652 has 24 divisors (see below), whose sum is σ = 2535951600. Its totient is φ = 326050848.

The previous prime is 978152611. The next prime is 978152653. The reversal of 978152652 is 256251879.

978152652 is a `hidden beast` number, since 9 + 78 + 1 + 526 + 52 = 666.

It is a super-2 number, since 2×978152652² = 1913565221229266208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 978152598 and 978152607.

It is not an unprimeable number, because it can be changed into a prime (978152653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4528377 + ... + 4528592.

It is an arithmetic number, because the mean of its divisors is an integer number (105664650).

Almost surely, 2^978152652 is an apocalyptic number.

It is an amenable number.

978152652 is an abundant number, since it is smaller than the sum of its proper divisors (1557798948).

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

978152652 is a wasteful number, since it uses less digits than its factorization.

978152652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9056982 (or 9056974 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 978152652 is about 31275.4320833462. The cubic root of 978152652 is about 992.6638633737.

The spelling of 978152652 in words is "nine hundred seventy-eight million, one hundred fifty-two thousand, six hundred fifty-two".