57786394 has 8 divisors (see below), whose sum is σ = 86719860. Its totient is φ = 28879776.

The previous prime is 57786347. The next prime is 57786427. The reversal of 57786394 is 49368775.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57380625 + 405769 = 7575^2 + 637^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22 + ... + 10750.

Almost surely, 2^57786394 is an apocalyptic number.

57786394 is a deficient number, since it is larger than the sum of its proper divisors (28933466).

57786394 is a wasteful number, since it uses less digits than its factorization.

57786394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13424.

The product of its digits is 1270080, while the sum is 49.

The square root of 57786394 is about 7601.7362490421. The cubic root of 57786394 is about 386.6118826797.

The spelling of 57786394 in words is "fifty-seven million, seven hundred eighty-six thousand, three hundred ninety-four".