86973933 has 4 divisors (see below), whose sum is σ = 115965248. Its totient is φ = 57982620.

The previous prime is 86973919. The next prime is 86973937. The reversal of 86973933 is 33937968.

It is a happy number.

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 not a de Polignac number, because 86973933 - 2⁴ = 86973917 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 (86973937) 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, 14495653 + ... + 14495658.

It is an arithmetic number, because the mean of its divisors is an integer number (28991312).

Almost surely, 2^86973933 is an apocalyptic number.

It is an amenable number.

86973933 is a deficient number, since it is larger than the sum of its proper divisors (28991315).

86973933 is a wasteful number, since it uses less digits than its factorization.

86973933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28991314.

The product of its digits is 734832, while the sum is 48.

The square root of 86973933 is about 9325.9816105330. The cubic root of 86973933 is about 443.0605032973.

The spelling of 86973933 in words is "eighty-six million, nine hundred seventy-three thousand, nine hundred thirty-three".