86944967 has 4 divisors (see below), whose sum is σ = 88169616. Its totient is φ = 85720320.

The previous prime is 86944961. The next prime is 86944973. The reversal of 86944967 is 76944968.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (86944961) and next prime (86944973).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86944967 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 (86944961) 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, 612218 + ... + 612359.

It is an arithmetic number, because the mean of its divisors is an integer number (22042404).

Almost surely, 2^86944967 is an apocalyptic number.

86944967 is a deficient number, since it is larger than the sum of its proper divisors (1224649).

86944967 is a wasteful number, since it uses less digits than its factorization.

86944967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224648.

The product of its digits is 2612736, while the sum is 53.

The square root of 86944967 is about 9324.4285079569. The cubic root of 86944967 is about 443.0113118707.

Subtracting from 86944967 its reverse (76944968), we obtain a palindrome (9999999).

The spelling of 86944967 in words is "eighty-six million, nine hundred forty-four thousand, nine hundred sixty-seven".