28631698 has 8 divisors (see below), whose sum is σ = 42975792. Its totient is φ = 14306436.

The previous prime is 28631663. The next prime is 28631717. The reversal of 28631698 is 89613682.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61 + ... + 7567.

It is an arithmetic number, because the mean of its divisors is an integer number (5371974).

Almost surely, 2^28631698 is an apocalyptic number.

28631698 is a deficient number, since it is larger than the sum of its proper divisors (14344094).

28631698 is a wasteful number, since it uses less digits than its factorization.

28631698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9416.

The product of its digits is 124416, while the sum is 43.

The square root of 28631698 is about 5350.8595571179. The cubic root of 28631698 is about 305.9255162099.

The spelling of 28631698 in words is "twenty-eight million, six hundred thirty-one thousand, six hundred ninety-eight".