30989862 has 12 divisors (see below), whose sum is σ = 67144740. Its totient is φ = 10329948.

The previous prime is 30989857. The next prime is 30989869. The reversal of 30989862 is 26898903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30989869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 860812 + ... + 860847.

It is an arithmetic number, because the mean of its divisors is an integer number (5595395).

Almost surely, 2^30989862 is an apocalyptic number.

30989862 is an abundant number, since it is smaller than the sum of its proper divisors (36154878).

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

30989862 is a wasteful number, since it uses less digits than its factorization.

30989862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721667 (or 1721664 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 30989862 is about 5566.8538691078. The cubic root of 30989862 is about 314.1038170785.

The spelling of 30989862 in words is "thirty million, nine hundred eighty-nine thousand, eight hundred sixty-two".