86501983 has 4 divisors (see below), whose sum is σ = 89484840. Its totient is φ = 83519128.

The previous prime is 86501971. The next prime is 86501999. The reversal of 86501983 is 38910568.

It is a happy number.

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 86501983 - 2⁵ = 86501951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86501953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1491385 + ... + 1491442.

It is an arithmetic number, because the mean of its divisors is an integer number (22371210).

Almost surely, 2^86501983 is an apocalyptic number.

86501983 is a deficient number, since it is larger than the sum of its proper divisors (2982857).

86501983 is a wasteful number, since it uses less digits than its factorization.

86501983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982856.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 86501983 is about 9300.6442249986. The cubic root of 86501983 is about 442.2576506042.

The spelling of 86501983 in words is "eighty-six million, five hundred one thousand, nine hundred eighty-three".