57621741 has 4 divisors (see below), whose sum is σ = 76828992. Its totient is φ = 38414492.

The previous prime is 57621703. The next prime is 57621749. The reversal of 57621741 is 14712675.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57621741 - 2¹⁴ = 57605357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57621749) 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, 9603621 + ... + 9603626.

It is an arithmetic number, because the mean of its divisors is an integer number (19207248).

Almost surely, 2^57621741 is an apocalyptic number.

It is an amenable number.

57621741 is a deficient number, since it is larger than the sum of its proper divisors (19207251).

57621741 is a wasteful number, since it uses less digits than its factorization.

57621741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19207250.

The product of its digits is 11760, while the sum is 33.

The square root of 57621741 is about 7590.8985634113. The cubic root of 57621741 is about 386.2443373244.

It can be divided in two parts, 5762 and 1741, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 57621741 in words is "fifty-seven million, six hundred twenty-one thousand, seven hundred forty-one".