86329997 has 4 divisors (see below), whose sum is σ = 92970780. Its totient is φ = 79689216.

The previous prime is 86329993. The next prime is 86330011. The reversal of 86329997 is 79992368.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40780996 + 45549001 = 6386^2 + 6749^2 .

It is a cyclic number.

It is not a de Polignac number, because 86329997 - 2² = 86329993 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 (86329993) 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, 3320372 + ... + 3320397.

It is an arithmetic number, because the mean of its divisors is an integer number (23242695).

Almost surely, 2^86329997 is an apocalyptic number.

It is an amenable number.

86329997 is a deficient number, since it is larger than the sum of its proper divisors (6640783).

86329997 is a wasteful number, since it uses less digits than its factorization.

86329997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6640782.

The product of its digits is 1469664, while the sum is 53.

The square root of 86329997 is about 9291.3937060056. The cubic root of 86329997 is about 441.9643525505.

The spelling of 86329997 in words is "eighty-six million, three hundred twenty-nine thousand, nine hundred ninety-seven".