86967967 has 4 divisors (see below), whose sum is σ = 87265080. Its totient is φ = 86670856.

The previous prime is 86967961. The next prime is 86968003. The reversal of 86967967 is 76976968.

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

It is a cyclic number.

It is not a de Polignac number, because 86967967 - 2¹¹ = 86965919 is a prime.

It is a super-2 number, since 2×86967967² = 15126854568226178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86967961) 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, 148117 + ... + 148702.

It is an arithmetic number, because the mean of its divisors is an integer number (21816270).

Almost surely, 2^86967967 is an apocalyptic number.

86967967 is a deficient number, since it is larger than the sum of its proper divisors (297113).

86967967 is a wasteful number, since it uses less digits than its factorization.

86967967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297112.

The product of its digits is 6858432, while the sum is 58.

The square root of 86967967 is about 9325.6617459567. The cubic root of 86967967 is about 443.0503724481.

Subtracting from 86967967 its reverse (76976968), we obtain a palindrome (9990999).

The spelling of 86967967 in words is "eighty-six million, nine hundred sixty-seven thousand, nine hundred sixty-seven".