83421319 has 2 divisors, whose sum is σ = 83421320. Its totient is φ = 83421318.

The previous prime is 83421293. The next prime is 83421337. The reversal of 83421319 is 91312438.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83421319 - 2¹⁵ = 83388551 is a prime.

It is a super-2 number, since 2×83421319² = 13918232927399522, which contains 22 as substring.

It is equal to p_4857313 and since 83421319 and 4857313 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83427319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41710659 + 41710660.

It is an arithmetic number, because the mean of its divisors is an integer number (41710660).

Almost surely, 2^83421319 is an apocalyptic number.

83421319 is a deficient number, since it is larger than the sum of its proper divisors (1).

83421319 is an equidigital number, since it uses as much as digits as its factorization.

83421319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 83421319 is about 9133.5271938063. The cubic root of 83421319 is about 436.9439034166.

The spelling of 83421319 in words is "eighty-three million, four hundred twenty-one thousand, three hundred nineteen".