76650491 has 2 divisors, whose sum is σ = 76650492. Its totient is φ = 76650490.

The previous prime is 76650487. The next prime is 76650493. The reversal of 76650491 is 19405667.

It is a strong prime.

It is an emirp because it is prime and its reverse (19405667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76650491 - 2² = 76650487 is a prime.

It is a super-3 number, since 3×76650491³ (a number of 25 digits) contains 333 as substring.

Together with 76650493, 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 (76650493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38325245 + 38325246.

It is an arithmetic number, because the mean of its divisors is an integer number (38325246).

Almost surely, 2^76650491 is an apocalyptic number.

76650491 is a deficient number, since it is larger than the sum of its proper divisors (1).

76650491 is an equidigital number, since it uses as much as digits as its factorization.

76650491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 76650491 is about 8755.0266133233. The cubic root of 76650491 is about 424.7874203316.

The spelling of 76650491 in words is "seventy-six million, six hundred fifty thousand, four hundred ninety-one".