61179879 has 8 divisors (see below), whose sum is σ = 84386160. Its totient is φ = 39380096.

The previous prime is 61179857. The next prime is 61179959. The reversal of 61179879 is 97897116.

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 not a de Polignac number, because 61179879 - 2¹⁷ = 61048807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61179809) 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, 351522 + ... + 351695.

It is an arithmetic number, because the mean of its divisors is an integer number (10548270).

Almost surely, 2^61179879 is an apocalyptic number.

61179879 is a deficient number, since it is larger than the sum of its proper divisors (23206281).

61179879 is a wasteful number, since it uses less digits than its factorization.

61179879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703249.

The product of its digits is 190512, while the sum is 48.

The square root of 61179879 is about 7821.7567719790. The cubic root of 61179879 is about 394.0362747572.

The spelling of 61179879 in words is "sixty-one million, one hundred seventy-nine thousand, eight hundred seventy-nine".