86992971 has 8 divisors (see below), whose sum is σ = 124913040. Its totient is φ = 53534112.

The previous prime is 86992949. The next prime is 86992987. The reversal of 86992971 is 17929968.

It is a happy number.

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

It is not a de Polignac number, because 86992971 - 2⁶ = 86992907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86992921) 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, 1115256 + ... + 1115333.

It is an arithmetic number, because the mean of its divisors is an integer number (15614130).

Almost surely, 2^86992971 is an apocalyptic number.

86992971 is a deficient number, since it is larger than the sum of its proper divisors (37920069).

86992971 is a wasteful number, since it uses less digits than its factorization.

86992971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230605.

The product of its digits is 489888, while the sum is 51.

The square root of 86992971 is about 9327.0022515276. The cubic root of 86992971 is about 443.0928285783.

The spelling of 86992971 in words is "eighty-six million, nine hundred ninety-two thousand, nine hundred seventy-one".