83474431 has 2 divisors, whose sum is σ = 83474432. Its totient is φ = 83474430.

The previous prime is 83474407. The next prime is 83474477. The reversal of 83474431 is 13447438.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83474431 - 2⁵ = 83474399 is a prime.

It is a super-2 number, since 2×83474431² = 13935961261547522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83174431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41737215 + 41737216.

It is an arithmetic number, because the mean of its divisors is an integer number (41737216).

Almost surely, 2^83474431 is an apocalyptic number.

83474431 is a deficient number, since it is larger than the sum of its proper divisors (1).

83474431 is an equidigital number, since it uses as much as digits as its factorization.

83474431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 34.

The square root of 83474431 is about 9136.4342606949. The cubic root of 83474431 is about 437.0366136955.

The spelling of 83474431 in words is "eighty-three million, four hundred seventy-four thousand, four hundred thirty-one".