712122990 has 32 divisors (see below), whose sum is σ = 1709859456. Its totient is φ = 189814560.

The previous prime is 712122989. The next prime is 712122997. The reversal of 712122990 is 99221217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712122997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92385 + ... + 99795.

It is an arithmetic number, because the mean of its divisors is an integer number (53433108).

Almost surely, 2^712122990 is an apocalyptic number.

712122990 is an abundant number, since it is smaller than the sum of its proper divisors (997736466).

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

712122990 is a wasteful number, since it uses less digits than its factorization.

712122990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10624.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 712122990 is about 26685.6326512976. The cubic root of 712122990 is about 893.0004317933. Note that the first 3 decimals are identical.

The spelling of 712122990 in words is "seven hundred twelve million, one hundred twenty-two thousand, nine hundred ninety".