61958679 has 4 divisors (see below), whose sum is σ = 82611576. Its totient is φ = 41305784.

The previous prime is 61958641. The next prime is 61958707. The reversal of 61958679 is 97685916.

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 61958679 - 2¹⁵ = 61925911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61958629) 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, 10326444 + ... + 10326449.

It is an arithmetic number, because the mean of its divisors is an integer number (20652894).

Almost surely, 2^61958679 is an apocalyptic number.

61958679 is a deficient number, since it is larger than the sum of its proper divisors (20652897).

61958679 is a wasteful number, since it uses less digits than its factorization.

61958679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20652896.

The product of its digits is 816480, while the sum is 51.

The square root of 61958679 is about 7871.3835505583. The cubic root of 61958679 is about 395.7012145245.

The spelling of 61958679 in words is "sixty-one million, nine hundred fifty-eight thousand, six hundred seventy-nine".