61724607 has 8 divisors (see below), whose sum is σ = 94056576. Its totient is φ = 35271192.

The previous prime is 61724599. The next prime is 61724623. The reversal of 61724607 is 70642716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61724607 - 2³ = 61724599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61724647) 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, 1469613 + ... + 1469654.

It is an arithmetic number, because the mean of its divisors is an integer number (11757072).

Almost surely, 2^61724607 is an apocalyptic number.

61724607 is a deficient number, since it is larger than the sum of its proper divisors (32331969).

61724607 is a wasteful number, since it uses less digits than its factorization.

61724607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939277.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 61724607 is about 7856.5009387131. The cubic root of 61724607 is about 395.2022827614.

Subtracting from 61724607 its product of nonzero digits (14112), we obtain a triangular number (61710495 = T₁₁₁₀₉).

The spelling of 61724607 in words is "sixty-one million, seven hundred twenty-four thousand, six hundred seven".