86983813 has 4 divisors (see below), whose sum is σ = 99410080. Its totient is φ = 74557548.

The previous prime is 86983801. The next prime is 86983823. The reversal of 86983813 is 31838968.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86983813 - 2⁹ = 86983301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86983823) 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, 6213123 + ... + 6213136.

It is an arithmetic number, because the mean of its divisors is an integer number (24852520).

Almost surely, 2^86983813 is an apocalyptic number.

It is an amenable number.

86983813 is a deficient number, since it is larger than the sum of its proper divisors (12426267).

86983813 is a wasteful number, since it uses less digits than its factorization.

86983813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12426266.

The product of its digits is 248832, while the sum is 46.

The square root of 86983813 is about 9326.5112984438. The cubic root of 86983813 is about 443.0772794810.

The spelling of 86983813 in words is "eighty-six million, nine hundred eighty-three thousand, eight hundred thirteen".