457093661 has 4 divisors (see below), whose sum is σ = 463355292. Its totient is φ = 450832032.

The previous prime is 457093649. The next prime is 457093687. The reversal of 457093661 is 166390754.

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

It can be written as a sum of positive squares in 2 ways, for example, as 276191161 + 180902500 = 16619^2 + 13450^2 .

It is a cyclic number.

It is not a de Polignac number, because 457093661 - 2¹⁰ = 457092637 is a prime.

It is a super-2 number, since 2×457093661² = 417869229852765842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457093601) 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 in 3 ways as a sum of consecutive naturals, for example, 3130706 + ... + 3130851.

It is an arithmetic number, because the mean of its divisors is an integer number (115838823).

Almost surely, 2^457093661 is an apocalyptic number.

It is an amenable number.

457093661 is a deficient number, since it is larger than the sum of its proper divisors (6261631).

457093661 is an equidigital number, since it uses as much as digits as its factorization.

457093661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6261630.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 457093661 is about 21379.7488525941. The cubic root of 457093661 is about 770.3150793520.

It can be divided in two parts, 457093 and 661, that added together give a palindrome (457754).

The spelling of 457093661 in words is "four hundred fifty-seven million, ninety-three thousand, six hundred sixty-one".