86992929 has 9 divisors (see below), whose sum is σ = 125696883. Its totient is φ = 57976632.

The previous prime is 86992921. The next prime is 86992949. The reversal of 86992929 is 92929968.

The square root of 86992929 is 9327.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15421329 + 71571600 = 3927^2 + 8460^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 86992929 - 2³ = 86992921 is a prime.

It is a Curzon number.

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 8 ways as a sum of consecutive naturals, for example, 26427 + ... + 29535.

Almost surely, 2^86992929 is an apocalyptic number.

86992929 is the 9327-th square number.

86992929 is the 4664-th centered octagonal number.

It is an amenable number.

86992929 is a deficient number, since it is larger than the sum of its proper divisors (38703954).

86992929 is an frugal number, since it uses more digits than its factorization.

86992929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6224 (or 3112 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The cubic root of 86992929 is about 443.0927572703.

It can be divided in two parts, 8699 and 2929, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 86992929 in words is "eighty-six million, nine hundred ninety-two thousand, nine hundred twenty-nine".