453969997 has 6 divisors (see below), whose sum is σ = 491577162. Its totient is φ = 419049072.

The previous prime is 453969979. The next prime is 453970003. The reversal of 453969997 is 799969354.

It can be written as a sum of positive squares in 3 ways, for example, as 30680521 + 423289476 = 5539^2 + 20574^2 .

It is a de Polignac number, because none of the positive numbers 2^k-453969997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453969697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1342938 + ... + 1343275.

It is an arithmetic number, because the mean of its divisors is an integer number (81929527).

Almost surely, 2^453969997 is an apocalyptic number.

It is an amenable number.

453969997 is a deficient number, since it is larger than the sum of its proper divisors (37607165).

453969997 is a wasteful number, since it uses less digits than its factorization.

453969997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686239 (or 2686226 counting only the distinct ones).

The product of its digits is 16533720, while the sum is 61.

The square root of 453969997 is about 21306.5716857499. The cubic root of 453969997 is about 768.5563533488.

The spelling of 453969997 in words is "four hundred fifty-three million, nine hundred sixty-nine thousand, nine hundred ninety-seven".