83008997 has 2 divisors, whose sum is σ = 83008998. Its totient is φ = 83008996.

The previous prime is 83008987. The next prime is 83008999. The reversal of 83008997 is 79980038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71893441 + 11115556 = 8479^2 + 3334^2 .

It is a cyclic number.

It is not a de Polignac number, because 83008997 - 2²⁰ = 81960421 is a prime.

Together with 83008999, 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 (83008999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41504498 + 41504499.

It is an arithmetic number, because the mean of its divisors is an integer number (41504499).

Almost surely, 2^83008997 is an apocalyptic number.

It is an amenable number.

83008997 is a deficient number, since it is larger than the sum of its proper divisors (1).

83008997 is an equidigital number, since it uses as much as digits as its factorization.

83008997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 83008997 is about 9110.9273402876. The cubic root of 83008997 is about 436.2228278410. Note that the first 3 decimals are identical.

The spelling of 83008997 in words is "eighty-three million, eight thousand, nine hundred ninety-seven".