86747329 has 4 divisors (see below), whose sum is σ = 90518976. Its totient is φ = 82975684.

The previous prime is 86747299. The next prime is 86747333. The reversal of 86747329 is 92374768.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86747329 - 2²¹ = 84650177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86747359) 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, 1885789 + ... + 1885834.

It is an arithmetic number, because the mean of its divisors is an integer number (22629744).

Almost surely, 2^86747329 is an apocalyptic number.

It is an amenable number.

86747329 is a deficient number, since it is larger than the sum of its proper divisors (3771647).

86747329 is a wasteful number, since it uses less digits than its factorization.

86747329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771646.

The product of its digits is 508032, while the sum is 46.

The square root of 86747329 is about 9313.8246172021. The cubic root of 86747329 is about 442.6753817653.

The spelling of 86747329 in words is "eighty-six million, seven hundred forty-seven thousand, three hundred twenty-nine".