73667831 has 2 divisors, whose sum is σ = 73667832. Its totient is φ = 73667830.

The previous prime is 73667821. The next prime is 73667833. The reversal of 73667831 is 13876637.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73667831 - 2⁶ = 73667767 is a prime.

It is a super-2 number, since 2×73667831² = 10853898648489122, which contains 22 as substring.

Together with 73667833, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73667833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36833915 + 36833916.

It is an arithmetic number, because the mean of its divisors is an integer number (36833916).

Almost surely, 2^73667831 is an apocalyptic number.

73667831 is a deficient number, since it is larger than the sum of its proper divisors (1).

73667831 is an equidigital number, since it uses as much as digits as its factorization.

73667831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 41.

The square root of 73667831 is about 8582.9966212273. The cubic root of 73667831 is about 419.2045241843.

The spelling of 73667831 in words is "seventy-three million, six hundred sixty-seven thousand, eight hundred thirty-one".