57903749 has 4 divisors (see below), whose sum is σ = 59900460. Its totient is φ = 55907040.

The previous prime is 57903739. The next prime is 57903763. The reversal of 57903749 is 94730975.

It is a happy number.

57903749 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 2 ways, for example, as 40322500 + 17581249 = 6350^2 + 4193^2 .

It is a cyclic number.

It is not a de Polignac number, because 57903749 - 2⁴ = 57903733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57903709) 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 in 3 ways as a sum of consecutive naturals, for example, 998312 + ... + 998369.

It is an arithmetic number, because the mean of its divisors is an integer number (14975115).

Almost surely, 2^57903749 is an apocalyptic number.

It is an amenable number.

57903749 is a deficient number, since it is larger than the sum of its proper divisors (1996711).

57903749 is a wasteful number, since it uses less digits than its factorization.

57903749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996710.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 57903749 is about 7609.4512942787. The cubic root of 57903749 is about 386.8734215144.

The spelling of 57903749 in words is "fifty-seven million, nine hundred three thousand, seven hundred forty-nine".