76687273 has 24 divisors (see below), whose sum is σ = 88247040. Its totient is φ = 66173760.

The previous prime is 76687253. The next prime is 76687279. The reversal of 76687273 is 37278667.

It is not a de Polignac number, because 76687273 - 2⁵ = 76687241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76687279) 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, 551638 + ... + 551776.

It is an arithmetic number, because the mean of its divisors is an integer number (3676960).

Almost surely, 2^76687273 is an apocalyptic number.

It is an amenable number.

76687273 is a deficient number, since it is larger than the sum of its proper divisors (11559767).

76687273 is a wasteful number, since it uses less digits than its factorization.

76687273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 220 counting only the distinct ones).

The product of its digits is 592704, while the sum is 46.

The square root of 76687273 is about 8757.1269832063. The cubic root of 76687273 is about 424.8553565450.

It can be divided in two parts, 7668 and 7273, that added together give a palindrome (14941).

The spelling of 76687273 in words is "seventy-six million, six hundred eighty-seven thousand, two hundred seventy-three".