76804919 has 2 divisors, whose sum is σ = 76804920. Its totient is φ = 76804918.

The previous prime is 76804913. The next prime is 76804943. The reversal of 76804919 is 91940867.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76804919 is a prime.

It is a super-2 number, since 2×76804919² = 11797991165193122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76804919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76804913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38402459 + 38402460.

It is an arithmetic number, because the mean of its divisors is an integer number (38402460).

Almost surely, 2^76804919 is an apocalyptic number.

76804919 is a deficient number, since it is larger than the sum of its proper divisors (1).

76804919 is an equidigital number, since it uses as much as digits as its factorization.

76804919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 76804919 is about 8763.8415663452. The cubic root of 76804919 is about 425.0725025097.

The spelling of 76804919 in words is "seventy-six million, eight hundred four thousand, nine hundred nineteen".