76685137 has 2 divisors, whose sum is σ = 76685138. Its totient is φ = 76685136.

The previous prime is 76685131. The next prime is 76685149. The reversal of 76685137 is 73158667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73942801 + 2742336 = 8599^2 + 1656^2 .

It is a cyclic number.

It is not a de Polignac number, because 76685137 - 2¹⁵ = 76652369 is a prime.

It is a super-2 number, since 2×76685137² = 11761220473417538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76685093 and 76685102.

It is not a weakly prime, because it can be changed into another prime (76685131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38342568 + 38342569.

It is an arithmetic number, because the mean of its divisors is an integer number (38342569).

Almost surely, 2^76685137 is an apocalyptic number.

It is an amenable number.

76685137 is a deficient number, since it is larger than the sum of its proper divisors (1).

76685137 is an equidigital number, since it uses as much as digits as its factorization.

76685137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 76685137 is about 8757.0050245503. The cubic root of 76685137 is about 424.8514119554.

The spelling of 76685137 in words is "seventy-six million, six hundred eighty-five thousand, one hundred thirty-seven".