76686373 has 4 divisors (see below), whose sum is σ = 76707148. Its totient is φ = 76665600.

The previous prime is 76686367. The next prime is 76686377. The reversal of 76686373 is 37368667.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50951044 + 25735329 = 7138^2 + 5073^2 .

It is a cyclic number.

It is not a de Polignac number, because 76686373 - 2⁵ = 76686341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76686377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3186 + ... + 12787.

It is an arithmetic number, because the mean of its divisors is an integer number (19176787).

Almost surely, 2^76686373 is an apocalyptic number.

It is an amenable number.

76686373 is a deficient number, since it is larger than the sum of its proper divisors (20775).

76686373 is a wasteful number, since it uses less digits than its factorization.

76686373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20774.

The product of its digits is 762048, while the sum is 46.

The square root of 76686373 is about 8757.0755963392. The cubic root of 76686373 is about 424.8536945077.

It can be divided in two parts, 7668 and 6373, that added together give a palindrome (14041).

The spelling of 76686373 in words is "seventy-six million, six hundred eighty-six thousand, three hundred seventy-three".