76681761 has 16 divisors (see below), whose sum is σ = 110289984. Its totient is φ = 47110464.

The previous prime is 76681757. The next prime is 76681763. The reversal of 76681761 is 16718667.

It is not a de Polignac number, because 76681761 - 2² = 76681757 is a prime.

It is a super-2 number, since 2×76681761² = 11760184940122242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76681763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29850 + ... + 32316.

It is an arithmetic number, because the mean of its divisors is an integer number (6893124).

Almost surely, 2^76681761 is an apocalyptic number.

It is an amenable number.

76681761 is a deficient number, since it is larger than the sum of its proper divisors (33608223).

76681761 is a wasteful number, since it uses less digits than its factorization.

76681761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280.

The product of its digits is 84672, while the sum is 42.

The square root of 76681761 is about 8756.8122624617. The cubic root of 76681761 is about 424.8451772860.

The spelling of 76681761 in words is "seventy-six million, six hundred eighty-one thousand, seven hundred sixty-one".