61607723 has 4 divisors (see below), whose sum is σ = 61927128. Its totient is φ = 61288320.

The previous prime is 61607717. The next prime is 61607737. The reversal of 61607723 is 32770616.

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 61607723 - 2⁶ = 61607659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61607723.

It is not an unprimeable number, because it can be changed into a prime (61607753) 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, 159413 + ... + 159798.

It is an arithmetic number, because the mean of its divisors is an integer number (15481782).

Almost surely, 2^61607723 is an apocalyptic number.

61607723 is a deficient number, since it is larger than the sum of its proper divisors (319405).

61607723 is a wasteful number, since it uses less digits than its factorization.

61607723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319404.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 61607723 is about 7849.0587333769. The cubic root of 61607723 is about 394.9526685796.

The spelling of 61607723 in words is "sixty-one million, six hundred seven thousand, seven hundred twenty-three".