61976091 has 8 divisors (see below), whose sum is σ = 82736640. Its totient is φ = 41266472.

The previous prime is 61976077. The next prime is 61976141. The reversal of 61976091 is 19067916.

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

It is a cyclic number.

It is not a de Polignac number, because 61976091 - 2¹¹ = 61974043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61976011) 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, 9795 + ... + 14828.

It is an arithmetic number, because the mean of its divisors is an integer number (10342080).

Almost surely, 2^61976091 is an apocalyptic number.

61976091 is a deficient number, since it is larger than the sum of its proper divisors (20760549).

61976091 is a wasteful number, since it uses less digits than its factorization.

61976091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25465.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 61976091 is about 7872.4895045976. The cubic root of 61976091 is about 395.7382784965.

The spelling of 61976091 in words is "sixty-one million, nine hundred seventy-six thousand, ninety-one".