86941791 has 24 divisors (see below), whose sum is σ = 134671680. Its totient is φ = 53853696.

The previous prime is 86941741. The next prime is 86941807. The reversal of 86941791 is 19714968.

It is a happy number.

It is not a de Polignac number, because 86941791 - 2¹⁰ = 86940767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86941741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8491 + ... + 15683.

It is an arithmetic number, because the mean of its divisors is an integer number (5611320).

Almost surely, 2^86941791 is an apocalyptic number.

86941791 is a deficient number, since it is larger than the sum of its proper divisors (47729889).

86941791 is a wasteful number, since it uses less digits than its factorization.

86941791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7295 (or 7292 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 86941791 is about 9324.2582010581. The cubic root of 86941791 is about 443.0059175732.

The spelling of 86941791 in words is "eighty-six million, nine hundred forty-one thousand, seven hundred ninety-one".