61879516 has 12 divisors (see below), whose sum is σ = 109341232. Its totient is φ = 30639168.

The previous prime is 61879511. The next prime is 61879529. The reversal of 61879516 is 61597816.

It is a happy number.

61879516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61879511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74685 + ... + 75508.

Almost surely, 2^61879516 is an apocalyptic number.

It is an amenable number.

61879516 is a deficient number, since it is larger than the sum of its proper divisors (47461716).

61879516 is a wasteful number, since it uses less digits than its factorization.

61879516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150300 (or 150298 counting only the distinct ones).

The product of its digits is 90720, while the sum is 43.

The square root of 61879516 is about 7866.3534118421. The cubic root of 61879516 is about 395.5326169676.

The spelling of 61879516 in words is "sixty-one million, eight hundred seventy-nine thousand, five hundred sixteen".