453978971 has 2 divisors, whose sum is σ = 453978972. Its totient is φ = 453978970.

The previous prime is 453978953. The next prime is 453978983. The reversal of 453978971 is 179879354.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-453978971 is a prime.

It is a super-2 number, since 2×453978971² = 412193812220437682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (453978671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226989485 + 226989486.

It is an arithmetic number, because the mean of its divisors is an integer number (226989486).

Almost surely, 2^453978971 is an apocalyptic number.

453978971 is a deficient number, since it is larger than the sum of its proper divisors (1).

453978971 is an equidigital number, since it uses as much as digits as its factorization.

453978971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 53.

The square root of 453978971 is about 21306.7822770122. The cubic root of 453978971 is about 768.5614175449.

The spelling of 453978971 in words is "four hundred fifty-three million, nine hundred seventy-eight thousand, nine hundred seventy-one".