978862533 has 48 divisors (see below), whose sum is σ = 1532160000. Its totient is φ = 553512960.

The previous prime is 978862531. The next prime is 978862537. The reversal of 978862533 is 335268879.

It is not a de Polignac number, because 978862533 - 2¹ = 978862531 is a prime.

It is a super-2 number, since 2×978862533² = 1916343717022352178, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978862531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 783093 + ... + 784341.

It is an arithmetic number, because the mean of its divisors is an integer number (31920000).

Almost surely, 2^978862533 is an apocalyptic number.

It is an amenable number.

978862533 is a deficient number, since it is larger than the sum of its proper divisors (553297467).

978862533 is a wasteful number, since it uses less digits than its factorization.

978862533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 1407 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The square root of 978862533 is about 31286.7788850179. The cubic root of 978862533 is about 992.9039427431.

The spelling of 978862533 in words is "nine hundred seventy-eight million, eight hundred sixty-two thousand, five hundred thirty-three".