2176996397 has 2 divisors, whose sum is σ = 2176996398. Its totient is φ = 2176996396.

The previous prime is 2176996373. The next prime is 2176996403. The reversal of 2176996397 is 7936996712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1588739881 + 588256516 = 39859^2 + 24254^2 .

It is a cyclic number.

It is not a de Polignac number, because 2176996397 - 2⁸ = 2176996141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2176996597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1088498198 + 1088498199.

It is an arithmetic number, because the mean of its divisors is an integer number (1088498199).

Almost surely, 2^2176996397 is an apocalyptic number.

It is an amenable number.

2176996397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2176996397 is an equidigital number, since it uses as much as digits as its factorization.

2176996397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7715736, while the sum is 59.

The square root of 2176996397 is about 46658.2939786701. The cubic root of 2176996397 is about 1296.0424807384.

The spelling of 2176996397 in words is "two billion, one hundred seventy-six million, nine hundred ninety-six thousand, three hundred ninety-seven".