56727890 has 16 divisors (see below), whose sum is σ = 106550208. Its totient is φ = 21704496.

The previous prime is 56727883. The next prime is 56727899. The reversal of 56727890 is 9872765.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56727899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123092 + ... + 123551.

It is an arithmetic number, because the mean of its divisors is an integer number (6659388).

Almost surely, 2^56727890 is an apocalyptic number.

56727890 is a deficient number, since it is larger than the sum of its proper divisors (49822318).

56727890 is a wasteful number, since it uses less digits than its factorization.

56727890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246673.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 56727890 is about 7531.7919514548. The cubic root of 56727890 is about 384.2367292115.

The spelling of 56727890 in words is "fifty-six million, seven hundred twenty-seven thousand, eight hundred ninety".