76836393 has 24 divisors (see below), whose sum is σ = 113597640. Its totient is φ = 50031360.

The previous prime is 76836391. The next prime is 76836401. The reversal of 76836393 is 39363867.

It is a happy number.

76836393 is a `hidden beast` number, since 7 + 6 + 8 + 3 + 639 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 20766249 + 56070144 = 4557^2 + 7488^2 .

It is not a de Polignac number, because 76836393 - 2¹ = 76836391 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76836391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94573 + ... + 95381.

It is an arithmetic number, because the mean of its divisors is an integer number (4733235).

Almost surely, 2^76836393 is an apocalyptic number.

It is an amenable number.

76836393 is a deficient number, since it is larger than the sum of its proper divisors (36761247).

76836393 is a wasteful number, since it uses less digits than its factorization.

76836393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1046 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 76836393 is about 8765.6370561414. The cubic root of 76836393 is about 425.1305582742.

The spelling of 76836393 in words is "seventy-six million, eight hundred thirty-six thousand, three hundred ninety-three".