83474399 has 2 divisors, whose sum is σ = 83474400. Its totient is φ = 83474398.

The previous prime is 83474389. The next prime is 83474407. The reversal of 83474399 is 99347438.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83474399 - 2⁸ = 83474143 is a prime.

It is a super-2 number, since 2×83474399² = 13935950576822402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83474329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41737199 + 41737200.

It is an arithmetic number, because the mean of its divisors is an integer number (41737200).

Almost surely, 2^83474399 is an apocalyptic number.

83474399 is a deficient number, since it is larger than the sum of its proper divisors (1).

83474399 is an equidigital number, since it uses as much as digits as its factorization.

83474399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 47.

The square root of 83474399 is about 9136.4325094645. The cubic root of 83474399 is about 437.0365578494.

The spelling of 83474399 in words is "eighty-three million, four hundred seventy-four thousand, three hundred ninety-nine".