61912679 has 4 divisors (see below), whose sum is σ = 62254920. Its totient is φ = 61570440.

The previous prime is 61912667. The next prime is 61912717. The reversal of 61912679 is 97621916.

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 61912679 - 2⁸ = 61912423 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 (61912649) 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, 170849 + ... + 171210.

It is an arithmetic number, because the mean of its divisors is an integer number (15563730).

Almost surely, 2^61912679 is an apocalyptic number.

61912679 is a deficient number, since it is larger than the sum of its proper divisors (342241).

61912679 is a wasteful number, since it uses less digits than its factorization.

61912679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342240.

The product of its digits is 40824, while the sum is 41.

The square root of 61912679 is about 7868.4610312309. The cubic root of 61912679 is about 395.6032634241.

The spelling of 61912679 in words is "sixty-one million, nine hundred twelve thousand, six hundred seventy-nine".