76998497 has 2 divisors, whose sum is σ = 76998498. Its totient is φ = 76998496.

The previous prime is 76998487. The next prime is 76998499. The reversal of 76998497 is 79489967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48011041 + 28987456 = 6929^2 + 5384^2 .

It is a cyclic number.

It is not a de Polignac number, because 76998497 - 2⁶ = 76998433 is a prime.

Together with 76998499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76998499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38499248 + 38499249.

It is an arithmetic number, because the mean of its divisors is an integer number (38499249).

Almost surely, 2^76998497 is an apocalyptic number.

It is an amenable number.

76998497 is a deficient number, since it is larger than the sum of its proper divisors (1).

76998497 is an equidigital number, since it uses as much as digits as its factorization.

76998497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 59.

The square root of 76998497 is about 8774.8787456010. The cubic root of 76998497 is about 425.4293184224.

The spelling of 76998497 in words is "seventy-six million, nine hundred ninety-eight thousand, four hundred ninety-seven".