61908679 has 8 divisors (see below), whose sum is σ = 74914848. Its totient is φ = 49943040.

The previous prime is 61908677. The next prime is 61908689. The reversal of 61908679 is 97680916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61908679 - 2¹ = 61908677 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 (61908673) 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, 260002 + ... + 260239.

It is an arithmetic number, because the mean of its divisors is an integer number (9364356).

Almost surely, 2^61908679 is an apocalyptic number.

61908679 is a deficient number, since it is larger than the sum of its proper divisors (13006169).

61908679 is a wasteful number, since it uses less digits than its factorization.

61908679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520265.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 61908679 is about 7868.2068478148. The cubic root of 61908679 is about 395.5947436446.

The spelling of 61908679 in words is "sixty-one million, nine hundred eight thousand, six hundred seventy-nine".