721713498 has 32 divisors (see below), whose sum is σ = 1580064192. Its totient is φ = 217948800.

The previous prime is 721713497. The next prime is 721713521. The reversal of 721713498 is 894317127.

It is not an unprimeable number, because it can be changed into a prime (721713493) 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, 678 + ... + 37998.

It is an arithmetic number, because the mean of its divisors is an integer number (49377006).

Almost surely, 2^721713498 is an apocalyptic number.

721713498 is an abundant number, since it is smaller than the sum of its proper divisors (858350694).

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

721713498 is a wasteful number, since it uses less digits than its factorization.

721713498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37630.

The product of its digits is 84672, while the sum is 42.

The square root of 721713498 is about 26864.7259059161. The cubic root of 721713498 is about 896.9913932526.

The spelling of 721713498 in words is "seven hundred twenty-one million, seven hundred thirteen thousand, four hundred ninety-eight".