86744769 has 8 divisors (see below), whose sum is σ = 115728480. Its totient is φ = 57795456.

The previous prime is 86744731. The next prime is 86744797. The reversal of 86744769 is 96744768.

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

It is not a de Polignac number, because 86744769 - 2⁷ = 86744641 is a prime.

It is a super-2 number, since 2×86744769² = 15049309897726722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86744719) 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, 1987 + ... + 13320.

It is an arithmetic number, because the mean of its divisors is an integer number (14466060).

Almost surely, 2^86744769 is an apocalyptic number.

It is an amenable number.

86744769 is a deficient number, since it is larger than the sum of its proper divisors (28983711).

86744769 is a wasteful number, since it uses less digits than its factorization.

86744769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17199.

The product of its digits is 2032128, while the sum is 51.

The square root of 86744769 is about 9313.6871860719. The cubic root of 86744769 is about 442.6710271255.

Subtracting 86744769 from its reverse (96744768), we obtain a palindrome (9999999).

The spelling of 86744769 in words is "eighty-six million, seven hundred forty-four thousand, seven hundred sixty-nine".