83623091 has 2 divisors, whose sum is σ = 83623092. Its totient is φ = 83623090.

The previous prime is 83623087. The next prime is 83623093. The reversal of 83623091 is 19032638.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83623091 - 2² = 83623087 is a prime.

Together with 83623093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83623093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41811545 + 41811546.

It is an arithmetic number, because the mean of its divisors is an integer number (41811546).

Almost surely, 2^83623091 is an apocalyptic number.

83623091 is a deficient number, since it is larger than the sum of its proper divisors (1).

83623091 is an equidigital number, since it uses as much as digits as its factorization.

83623091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 83623091 is about 9144.5662007555. The cubic root of 83623091 is about 437.2959000101.

The spelling of 83623091 in words is "eighty-three million, six hundred twenty-three thousand, ninety-one".