57672661 has 8 divisors (see below), whose sum is σ = 61029504. Its totient is φ = 54386640.

The previous prime is 57672649. The next prime is 57672673. The reversal of 57672661 is 16627675.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57672649) and next prime (57672673).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57672661 - 2¹³ = 57664469 is a prime.

It is a super-2 number, since 2×57672661² = 6652271653641842, 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 (57672061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16026 + ... + 19291.

It is an arithmetic number, because the mean of its divisors is an integer number (7628688).

Almost surely, 2^57672661 is an apocalyptic number.

It is an amenable number.

57672661 is a deficient number, since it is larger than the sum of its proper divisors (3356843).

57672661 is a wasteful number, since it uses less digits than its factorization.

57672661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35411.

The product of its digits is 105840, while the sum is 40.

The square root of 57672661 is about 7594.2518393848. The cubic root of 57672661 is about 386.3580777911.

It can be divided in two parts, 576 and 72661, that added together give a palindrome (73237).

The spelling of 57672661 in words is "fifty-seven million, six hundred seventy-two thousand, six hundred sixty-one".