61996790 has 16 divisors (see below), whose sum is σ = 118158912. Its totient is φ = 23339904.

The previous prime is 61996789. The next prime is 61996813. The reversal of 61996790 is 9769916.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182174 + ... + 182513.

It is an arithmetic number, because the mean of its divisors is an integer number (7384932).

Almost surely, 2^61996790 is an apocalyptic number.

61996790 is a deficient number, since it is larger than the sum of its proper divisors (56162122).

61996790 is a wasteful number, since it uses less digits than its factorization.

61996790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364711.

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 61996790 is about 7873.8040361696. The cubic root of 61996790 is about 395.7823302953.

The spelling of 61996790 in words is "sixty-one million, nine hundred ninety-six thousand, seven hundred ninety".