61576889 has 8 divisors (see below), whose sum is σ = 69491520. Its totient is φ = 54048400.

The previous prime is 61576883. The next prime is 61576897. The reversal of 61576889 is 98867516.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61576889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61576883) 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, 96197 + ... + 96834.

It is an arithmetic number, because the mean of its divisors is an integer number (8686440).

Almost surely, 2^61576889 is an apocalyptic number.

It is an amenable number.

61576889 is a deficient number, since it is larger than the sum of its proper divisors (7914631).

61576889 is a wasteful number, since it uses less digits than its factorization.

61576889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193071.

The product of its digits is 725760, while the sum is 50.

The square root of 61576889 is about 7847.0943029888. The cubic root of 61576889 is about 394.8867677358.

The spelling of 61576889 in words is "sixty-one million, five hundred seventy-six thousand, eight hundred eighty-nine".