453989731 has 4 divisors (see below), whose sum is σ = 488912032. Its totient is φ = 419067432.

The previous prime is 453989689. The next prime is 453989771. The reversal of 453989731 is 137989354.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 453989731 - 2⁷ = 453989603 is a prime.

It is a super-2 number, since 2×453989731² = 412213351706904722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (453989771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17461131 + ... + 17461156.

It is an arithmetic number, because the mean of its divisors is an integer number (122228008).

Almost surely, 2^453989731 is an apocalyptic number.

453989731 is a deficient number, since it is larger than the sum of its proper divisors (34922301).

453989731 is a wasteful number, since it uses less digits than its factorization.

453989731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34922300.

The product of its digits is 816480, while the sum is 49.

The square root of 453989731 is about 21307.0347772749. The cubic root of 453989731 is about 768.5674895263.

The spelling of 453989731 in words is "four hundred fifty-three million, nine hundred eighty-nine thousand, seven hundred thirty-one".