57078794 has 4 divisors (see below), whose sum is σ = 85618194. Its totient is φ = 28539396.

The previous prime is 57078787. The next prime is 57078797. The reversal of 57078794 is 49787075.

57078794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 55726225 + 1352569 = 7465^2 + 1163^2 .

It is not an unprimeable number, because it can be changed into a prime (57078797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14269697 + ... + 14269700.

Almost surely, 2^57078794 is an apocalyptic number.

57078794 is a deficient number, since it is larger than the sum of its proper divisors (28539400).

57078794 is a wasteful number, since it uses less digits than its factorization.

57078794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28539399.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 57078794 is about 7555.0508932766. The cubic root of 57078794 is about 385.0273641089.

The spelling of 57078794 in words is "fifty-seven million, seventy-eight thousand, seven hundred ninety-four".