83193997 has 2 divisors, whose sum is σ = 83193998. Its totient is φ = 83193996.

The previous prime is 83193983. The next prime is 83194051. The reversal of 83193997 is 79939138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47803396 + 35390601 = 6914^2 + 5949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83193997 is a prime.

It is a super-2 number, since 2×83193997² = 13842482273672018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83193997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83193917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41596998 + 41596999.

It is an arithmetic number, because the mean of its divisors is an integer number (41596999).

Almost surely, 2^83193997 is an apocalyptic number.

It is an amenable number.

83193997 is a deficient number, since it is larger than the sum of its proper divisors (1).

83193997 is an equidigital number, since it uses as much as digits as its factorization.

83193997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367416, while the sum is 49.

The square root of 83193997 is about 9121.0743336517. The cubic root of 83193997 is about 436.5466535625.

The spelling of 83193997 in words is "eighty-three million, one hundred ninety-three thousand, nine hundred ninety-seven".