83047997 has 2 divisors, whose sum is σ = 83047998. Its totient is φ = 83047996.

The previous prime is 83047969. The next prime is 83048029. The reversal of 83047997 is 79974038.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81342361 + 1705636 = 9019^2 + 1306^2 .

It is a cyclic number.

It is not a de Polignac number, because 83047997 - 2⁶ = 83047933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83047927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41523998 + 41523999.

It is an arithmetic number, because the mean of its divisors is an integer number (41523999).

Almost surely, 2^83047997 is an apocalyptic number.

It is an amenable number.

83047997 is a deficient number, since it is larger than the sum of its proper divisors (1).

83047997 is an equidigital number, since it uses as much as digits as its factorization.

83047997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 83047997 is about 9113.0673760266. The cubic root of 83047997 is about 436.2911337968.

The spelling of 83047997 in words is "eighty-three million, forty-seven thousand, nine hundred ninety-seven".