731106990 has 24 divisors (see below), whose sum is σ = 1900878408. Its totient is φ = 194961840.

The previous prime is 731106989. The next prime is 731107019. The reversal of 731106990 is 99601137.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4061616 + ... + 4061795.

It is an arithmetic number, because the mean of its divisors is an integer number (79203267).

Almost surely, 2^731106990 is an apocalyptic number.

731106990 is an abundant number, since it is smaller than the sum of its proper divisors (1169771418).

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

731106990 is a wasteful number, since it uses less digits than its factorization.

731106990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8123424 (or 8123421 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 731106990 is about 27038.9901808481. The cubic root of 731106990 is about 900.8662400601.

The spelling of 731106990 in words is "seven hundred thirty-one million, one hundred six thousand, nine hundred ninety".