57740069 has 4 divisors (see below), whose sum is σ = 60779040. Its totient is φ = 54701100.

The previous prime is 57740063. The next prime is 57740071. The reversal of 57740069 is 96004775.

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 57740069 - 2¹² = 57735973 is a prime.

It is a super-2 number, since 2×57740069² = 6667831136249522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57740063) 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, 1519457 + ... + 1519494.

It is an arithmetic number, because the mean of its divisors is an integer number (15194760).

Almost surely, 2^57740069 is an apocalyptic number.

It is an amenable number.

57740069 is a deficient number, since it is larger than the sum of its proper divisors (3038971).

57740069 is a wasteful number, since it uses less digits than its factorization.

57740069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038970.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 57740069 is about 7598.6886368636. The cubic root of 57740069 is about 386.5085447241.

The spelling of 57740069 in words is "fifty-seven million, seven hundred forty thousand, sixty-nine".