61840791 has 12 divisors (see below), whose sum is σ = 90840360. Its totient is φ = 40528080.

The previous prime is 61840739. The next prime is 61840817. The reversal of 61840791 is 19704816.

It is not a de Polignac number, because 61840791 - 2¹⁴ = 61824407 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61840711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57700 + ... + 58761.

It is an arithmetic number, because the mean of its divisors is an integer number (7570030).

Almost surely, 2^61840791 is an apocalyptic number.

61840791 is a deficient number, since it is larger than the sum of its proper divisors (28999569).

61840791 is a wasteful number, since it uses less digits than its factorization.

61840791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116526 (or 116523 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 61840791 is about 7863.8915938611. The cubic root of 61840791 is about 395.4500899437.

The spelling of 61840791 in words is "sixty-one million, eight hundred forty thousand, seven hundred ninety-one".