56738947 has 4 divisors (see below), whose sum is σ = 56780136. Its totient is φ = 56697760.

The previous prime is 56738933. The next prime is 56738951. The reversal of 56738947 is 74983765.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 56738947 - 2¹¹ = 56736899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56738947.

It is not an unprimeable number, because it can be changed into a prime (56738977) by changing a digit.

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, 18454 + ... + 21307.

It is an arithmetic number, because the mean of its divisors is an integer number (14195034).

Almost surely, 2^56738947 is an apocalyptic number.

56738947 is a deficient number, since it is larger than the sum of its proper divisors (41189).

56738947 is a wasteful number, since it uses less digits than its factorization.

56738947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41188.

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

The square root of 56738947 is about 7532.5259375591. The cubic root of 56738947 is about 384.2616918270.

The spelling of 56738947 in words is "fifty-six million, seven hundred thirty-eight thousand, nine hundred forty-seven".