61723344 has 20 divisors (see below), whose sum is σ = 159452096. Its totient is φ = 20574432.

The previous prime is 61723313. The next prime is 61723357. The reversal of 61723344 is 44332716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642904 + ... + 642999.

Almost surely, 2^61723344 is an apocalyptic number.

It is an amenable number.

61723344 is an abundant number, since it is smaller than the sum of its proper divisors (97728752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61723344 is a wasteful number, since it uses less digits than its factorization.

61723344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285914 (or 1285908 counting only the distinct ones).

The product of its digits is 12096, while the sum is 30.

The square root of 61723344 is about 7856.4205590078. The cubic root of 61723344 is about 395.1995872189.

The spelling of 61723344 in words is "sixty-one million, seven hundred twenty-three thousand, three hundred forty-four".