57405689 has 8 divisors (see below), whose sum is σ = 62716800. Its totient is φ = 52110000.

The previous prime is 57405683. The next prime is 57405709. The reversal of 57405689 is 98650475.

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 57405689 - 2⁸ = 57405433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57405683) 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 7 ways as a sum of consecutive naturals, for example, 4787 + ... + 11735.

It is an arithmetic number, because the mean of its divisors is an integer number (7839600).

Almost surely, 2^57405689 is an apocalyptic number.

It is an amenable number.

57405689 is a deficient number, since it is larger than the sum of its proper divisors (5311111).

57405689 is a wasteful number, since it uses less digits than its factorization.

57405689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 57405689 is about 7576.6542088180. The cubic root of 57405689 is about 385.7609932790.

The spelling of 57405689 in words is "fifty-seven million, four hundred five thousand, six hundred eighty-nine".