76936861 has 2 divisors, whose sum is σ = 76936862. Its totient is φ = 76936860.

The previous prime is 76936859. The next prime is 76936897. The reversal of 76936861 is 16863967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73856836 + 3080025 = 8594^2 + 1755^2 .

It is a cyclic number.

It is not a de Polignac number, because 76936861 - 2¹ = 76936859 is a prime.

Together with 76936859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76936831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38468430 + 38468431.

It is an arithmetic number, because the mean of its divisors is an integer number (38468431).

Almost surely, 2^76936861 is an apocalyptic number.

It is an amenable number.

76936861 is a deficient number, since it is larger than the sum of its proper divisors (1).

76936861 is an equidigital number, since it uses as much as digits as its factorization.

76936861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 76936861 is about 8771.3659711587. The cubic root of 76936861 is about 425.3157717849.

The spelling of 76936861 in words is "seventy-six million, nine hundred thirty-six thousand, eight hundred sixty-one".