57723394 has 4 divisors (see below), whose sum is σ = 86585094. Its totient is φ = 28861696.

The previous prime is 57723389. The next prime is 57723401. The reversal of 57723394 is 49332775.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43758225 + 13965169 = 6615^2 + 3737^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14430847 + ... + 14430850.

Almost surely, 2^57723394 is an apocalyptic number.

57723394 is a deficient number, since it is larger than the sum of its proper divisors (28861700).

57723394 is a wasteful number, since it uses less digits than its factorization.

57723394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28861699.

The product of its digits is 158760, while the sum is 40.

The square root of 57723394 is about 7597.5913288357. The cubic root of 57723394 is about 386.4713339932.

The spelling of 57723394 in words is "fifty-seven million, seven hundred twenty-three thousand, three hundred ninety-four".