8978631 has 8 divisors (see below), whose sum is σ = 12263664. Its totient is φ = 5839680.

The previous prime is 8978617. The next prime is 8978633. The reversal of 8978631 is 1368798.

8978631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8978631 - 2⁷ = 8978503 is a prime.

It is a super-2 number, since 2×8978631² = 161231629268322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8978633) 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, 36376 + ... + 36621.

It is an arithmetic number, because the mean of its divisors is an integer number (1532958).

Almost surely, 2^8978631 is an apocalyptic number.

8978631 is a deficient number, since it is larger than the sum of its proper divisors (3285033).

8978631 is a wasteful number, since it uses less digits than its factorization.

8978631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73041.

The product of its digits is 72576, while the sum is 42.

The square root of 8978631 is about 2996.4363834395. The cubic root of 8978631 is about 207.8436247613.

The spelling of 8978631 in words is "eight million, nine hundred seventy-eight thousand, six hundred thirty-one".