83232991 has 2 divisors, whose sum is σ = 83232992. Its totient is φ = 83232990.

The previous prime is 83232983. The next prime is 83232997. The reversal of 83232991 is 19923238.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83232991 - 2³ = 83232983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83232991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83232997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41616495 + 41616496.

It is an arithmetic number, because the mean of its divisors is an integer number (41616496).

Almost surely, 2^83232991 is an apocalyptic number.

83232991 is a deficient number, since it is larger than the sum of its proper divisors (1).

83232991 is an equidigital number, since it uses as much as digits as its factorization.

83232991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 83232991 is about 9123.2116603749. The cubic root of 83232991 is about 436.6148477509.

The spelling of 83232991 in words is "eighty-three million, two hundred thirty-two thousand, nine hundred ninety-one".