76685069 has 2 divisors, whose sum is σ = 76685070. Its totient is φ = 76685068.

The previous prime is 76685029. The next prime is 76685071. The reversal of 76685069 is 96058667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64609444 + 12075625 = 8038^2 + 3475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76685069 is a prime.

It is a super-2 number, since 2×76685069² = 11761199615069522, which contains 22 as substring.

Together with 76685071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76685029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38342534 + 38342535.

It is an arithmetic number, because the mean of its divisors is an integer number (38342535).

Almost surely, 2^76685069 is an apocalyptic number.

It is an amenable number.

76685069 is a deficient number, since it is larger than the sum of its proper divisors (1).

76685069 is an equidigital number, since it uses as much as digits as its factorization.

76685069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 76685069 is about 8757.0011419435. The cubic root of 76685069 is about 424.8512863773.

The spelling of 76685069 in words is "seventy-six million, six hundred eighty-five thousand, sixty-nine".