86997722 has 8 divisors (see below), whose sum is σ = 149138976. Its totient is φ = 37284732.

The previous prime is 86997697. The next prime is 86997731. The reversal of 86997722 is 22779968.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3107048 + ... + 3107075.

It is an arithmetic number, because the mean of its divisors is an integer number (18642372).

Almost surely, 2^86997722 is an apocalyptic number.

86997722 is a deficient number, since it is larger than the sum of its proper divisors (62141254).

86997722 is a wasteful number, since it uses less digits than its factorization.

86997722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6214132.

The product of its digits is 762048, while the sum is 50.

The square root of 86997722 is about 9327.2569386717. The cubic root of 86997722 is about 443.1008947308.

The spelling of 86997722 in words is "eighty-six million, nine hundred ninety-seven thousand, seven hundred twenty-two".