57386738 has 4 divisors (see below), whose sum is σ = 86080110. Its totient is φ = 28693368.

The previous prime is 57386731. The next prime is 57386753. The reversal of 57386738 is 83768375.

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., 45738169 + 11648569 = 6763^2 + 3413^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57386692 and 57386701.

It is not an unprimeable number, because it can be changed into a prime (57386731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14346683 + ... + 14346686.

Almost surely, 2^57386738 is an apocalyptic number.

57386738 is a deficient number, since it is larger than the sum of its proper divisors (28693372).

57386738 is a wasteful number, since it uses less digits than its factorization.

57386738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28693371.

The product of its digits is 846720, while the sum is 47.

The square root of 57386738 is about 7575.4034876038. The cubic root of 57386738 is about 385.7185389432.

The spelling of 57386738 in words is "fifty-seven million, three hundred eighty-six thousand, seven hundred thirty-eight".