61888879 has 8 divisors (see below), whose sum is σ = 66710672. Its totient is φ = 57075840.

The previous prime is 61888877. The next prime is 61888919. The reversal of 61888879 is 97888816.

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 61888879 - 2¹ = 61888877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61888873) 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, 26992 + ... + 29194.

It is an arithmetic number, because the mean of its divisors is an integer number (8338834).

Almost surely, 2^61888879 is an apocalyptic number.

61888879 is a deficient number, since it is larger than the sum of its proper divisors (4821793).

61888879 is a wasteful number, since it uses less digits than its factorization.

61888879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377.

The product of its digits is 1548288, while the sum is 55.

The square root of 61888879 is about 7866.9485189621. The cubic root of 61888879 is about 395.5525653305.

The spelling of 61888879 in words is "sixty-one million, eight hundred eighty-eight thousand, eight hundred seventy-nine".