61416791 has 4 divisors (see below), whose sum is σ = 61519584. Its totient is φ = 61314000.

The previous prime is 61416779. The next prime is 61416793. The reversal of 61416791 is 19761416.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61416791 - 2⁶ = 61416727 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 (61416793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50495 + ... + 51696.

It is an arithmetic number, because the mean of its divisors is an integer number (15379896).

Almost surely, 2^61416791 is an apocalyptic number.

61416791 is a deficient number, since it is larger than the sum of its proper divisors (102793).

61416791 is a wasteful number, since it uses less digits than its factorization.

61416791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102792.

The product of its digits is 9072, while the sum is 35.

The square root of 61416791 is about 7836.8865629151. The cubic root of 61416791 is about 394.5442395970.

The spelling of 61416791 in words is "sixty-one million, four hundred sixteen thousand, seven hundred ninety-one".