457272643 has 2 divisors, whose sum is σ = 457272644. Its totient is φ = 457272642.

The previous prime is 457272623. The next prime is 457272649. The reversal of 457272643 is 346272754.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 457272643 - 2¹⁷ = 457141571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 457272596 and 457272605.

It is not a weakly prime, because it can be changed into another prime (457272649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228636321 + 228636322.

It is an arithmetic number, because the mean of its divisors is an integer number (228636322).

Almost surely, 2^457272643 is an apocalyptic number.

457272643 is a deficient number, since it is larger than the sum of its proper divisors (1).

457272643 is an equidigital number, since it uses as much as digits as its factorization.

457272643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 40.

The square root of 457272643 is about 21383.9342264234. The cubic root of 457272643 is about 770.4156091076.

The spelling of 457272643 in words is "four hundred fifty-seven million, two hundred seventy-two thousand, six hundred forty-three".