76279997 has 2 divisors, whose sum is σ = 76279998. Its totient is φ = 76279996.

The previous prime is 76279991. The next prime is 76280033. The reversal of 76279997 is 79997267.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65383396 + 10896601 = 8086^2 + 3301^2 .

It is a cyclic number.

It is not a de Polignac number, because 76279997 - 2¹⁰ = 76278973 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 (76279991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38139998 + 38139999.

It is an arithmetic number, because the mean of its divisors is an integer number (38139999).

Almost surely, 2^76279997 is an apocalyptic number.

It is an amenable number.

76279997 is a deficient number, since it is larger than the sum of its proper divisors (1).

76279997 is an equidigital number, since it uses as much as digits as its factorization.

76279997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000564, while the sum is 56.

The square root of 76279997 is about 8733.8420526135. The cubic root of 76279997 is about 424.1019042028.

The spelling of 76279997 in words is "seventy-six million, two hundred seventy-nine thousand, nine hundred ninety-seven".