5656723 has 2 divisors, whose sum is σ = 5656724. Its totient is φ = 5656722.

The previous prime is 5656691. The next prime is 5656727. The reversal of 5656723 is 3276565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5656723 - 2⁵ = 5656691 is a prime.

It is an Ulam number.

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

It is not a weakly prime, because it can be changed into another prime (5656727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828361 + 2828362.

It is an arithmetic number, because the mean of its divisors is an integer number (2828362).

Almost surely, 2^5656723 is an apocalyptic number.

5656723 is a deficient number, since it is larger than the sum of its proper divisors (1).

5656723 is an equidigital number, since it uses as much as digits as its factorization.

5656723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 34.

The square root of 5656723 is about 2378.3866380385. The cubic root of 5656723 is about 178.1783655841.

The spelling of 5656723 in words is "five million, six hundred fifty-six thousand, seven hundred twenty-three".