457272691 has 4 divisors (see below), whose sum is σ = 457316584. Its totient is φ = 457228800.

The previous prime is 457272689. The next prime is 457272703. The reversal of 457272691 is 196272754.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 9-Lehmer number, since φ(457272691) divides (457272691-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 457272691 - 2¹ = 457272689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457278691) 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, 3571 + ... + 30451.

It is an arithmetic number, because the mean of its divisors is an integer number (114329146).

Almost surely, 2^457272691 is an apocalyptic number.

457272691 is a deficient number, since it is larger than the sum of its proper divisors (43893).

457272691 is a wasteful number, since it uses less digits than its factorization.

457272691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43892.

The product of its digits is 211680, while the sum is 43.

The square root of 457272691 is about 21383.9353487612. The cubic root of 457272691 is about 770.4156360645.

The spelling of 457272691 in words is "four hundred fifty-seven million, two hundred seventy-two thousand, six hundred ninety-one".