76812137 has 8 divisors (see below), whose sum is σ = 81468576. Its totient is φ = 72171072.

The previous prime is 76812121. The next prime is 76812139. The reversal of 76812137 is 73121867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76812137 - 2⁴ = 76812121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76812097 and 76812106.

It is not an unprimeable number, because it can be changed into a prime (76812139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7418 + ... + 14444.

It is an arithmetic number, because the mean of its divisors is an integer number (10183572).

Almost surely, 2^76812137 is an apocalyptic number.

It is an amenable number.

76812137 is a deficient number, since it is larger than the sum of its proper divisors (4656439).

76812137 is a wasteful number, since it uses less digits than its factorization.

76812137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7687.

The product of its digits is 14112, while the sum is 35.

The square root of 76812137 is about 8764.2533623806. The cubic root of 76812137 is about 425.0858179642.

The spelling of 76812137 in words is "seventy-six million, eight hundred twelve thousand, one hundred thirty-seven".