61960279 has 4 divisors (see below), whose sum is σ = 62004376. Its totient is φ = 61916184.

The previous prime is 61960277. The next prime is 61960319. The reversal of 61960279 is 97206916.

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 61960279 - 2¹ = 61960277 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 (61960271) 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, 19869 + ... + 22774.

It is an arithmetic number, because the mean of its divisors is an integer number (15501094).

Almost surely, 2^61960279 is an apocalyptic number.

61960279 is a deficient number, since it is larger than the sum of its proper divisors (44097).

61960279 is a wasteful number, since it uses less digits than its factorization.

61960279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44096.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 61960279 is about 7871.4851838773. The cubic root of 61960279 is about 395.7046206467.

The spelling of 61960279 in words is "sixty-one million, nine hundred sixty thousand, two hundred seventy-nine".