76906619 has 2 divisors, whose sum is σ = 76906620. Its totient is φ = 76906618.

The previous prime is 76906597. The next prime is 76906639. The reversal of 76906619 is 91660967.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76906619 is a prime.

It is a super-2 number, since 2×76906619² = 11829256092022322, which contains 22 as substring.

It is a Sophie Germain prime.

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 76906619.

It is not a weakly prime, because it can be changed into another prime (76906639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38453309 + 38453310.

It is an arithmetic number, because the mean of its divisors is an integer number (38453310).

Almost surely, 2^76906619 is an apocalyptic number.

76906619 is a deficient number, since it is larger than the sum of its proper divisors (1).

76906619 is an equidigital number, since it uses as much as digits as its factorization.

76906619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 76906619 is about 8769.6418969078. The cubic root of 76906619 is about 425.2600374028.

The spelling of 76906619 in words is "seventy-six million, nine hundred six thousand, six hundred nineteen".