86991467 has 8 divisors (see below), whose sum is σ = 87912000. Its totient is φ = 86075080.

The previous prime is 86991439. The next prime is 86991479. The reversal of 86991467 is 76419968.

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

It is a cyclic number.

It is not a de Polignac number, because 86991467 - 2⁸ = 86991211 is a prime.

It is a super-3 number, since 3×86991467³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86991427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57284 + ... + 58782.

It is an arithmetic number, because the mean of its divisors is an integer number (10989000).

Almost surely, 2^86991467 is an apocalyptic number.

86991467 is a deficient number, since it is larger than the sum of its proper divisors (920533).

86991467 is a wasteful number, since it uses less digits than its factorization.

86991467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073.

The product of its digits is 653184, while the sum is 50.

The square root of 86991467 is about 9326.9216250594. The cubic root of 86991467 is about 443.0902750561.

The spelling of 86991467 in words is "eighty-six million, nine hundred ninety-one thousand, four hundred sixty-seven".