86763791 has 4 divisors (see below), whose sum is σ = 86805312. Its totient is φ = 86722272.

The previous prime is 86763769. The next prime is 86763793. The reversal of 86763791 is 19736768.

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 86763791 - 2¹⁸ = 86501647 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 (86763793) 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, 17450 + ... + 21863.

It is an arithmetic number, because the mean of its divisors is an integer number (21701328).

Almost surely, 2^86763791 is an apocalyptic number.

86763791 is a deficient number, since it is larger than the sum of its proper divisors (41521).

86763791 is a wasteful number, since it uses less digits than its factorization.

86763791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41520.

The product of its digits is 381024, while the sum is 47.

The square root of 86763791 is about 9314.7083153473. The cubic root of 86763791 is about 442.7033820941.

The spelling of 86763791 in words is "eighty-six million, seven hundred sixty-three thousand, seven hundred ninety-one".