61723927 has 4 divisors (see below), whose sum is σ = 64407600. Its totient is φ = 59040256.

The previous prime is 61723891. The next prime is 61723931. The reversal of 61723927 is 72932716.

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 61723927 - 2¹⁵ = 61691159 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 (61723967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1341802 + ... + 1341847.

It is an arithmetic number, because the mean of its divisors is an integer number (16101900).

Almost surely, 2^61723927 is an apocalyptic number.

61723927 is a deficient number, since it is larger than the sum of its proper divisors (2683673).

61723927 is a wasteful number, since it uses less digits than its factorization.

61723927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683672.

The product of its digits is 31752, while the sum is 37.

The square root of 61723927 is about 7856.4576623310. The cubic root of 61723927 is about 395.2008314842.

The spelling of 61723927 in words is "sixty-one million, seven hundred twenty-three thousand, nine hundred twenty-seven".