61879975 has 6 divisors (see below), whose sum is σ = 76731200. Its totient is φ = 49503960.

The previous prime is 61879969. The next prime is 61880003. The reversal of 61879975 is 57997816.

It is a happy number.

It is not a de Polignac number, because 61879975 - 2⁵ = 61879943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1237575 + ... + 1237624.

Almost surely, 2^61879975 is an apocalyptic number.

61879975 is a deficient number, since it is larger than the sum of its proper divisors (14851225).

61879975 is a wasteful number, since it uses less digits than its factorization.

61879975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475209 (or 2475204 counting only the distinct ones).

The product of its digits is 952560, while the sum is 52.

The square root of 61879975 is about 7866.3825866786. The cubic root of 61879975 is about 395.5335949381.

The spelling of 61879975 in words is "sixty-one million, eight hundred seventy-nine thousand, nine hundred seventy-five".