67736773 has 16 divisors (see below), whose sum is σ = 74629296. Its totient is φ = 61102080.

The previous prime is 67736737. The next prime is 67736783. The reversal of 67736773 is 37763776.

It can be written as a sum of positive squares in 8 ways, for example, as 3448449 + 64288324 = 1857^2 + 8018^2 .

It is not a de Polignac number, because 67736773 - 2⁹ = 67736261 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 (67736783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129753 + ... + 130273.

It is an arithmetic number, because the mean of its divisors is an integer number (4664331).

Almost surely, 2^67736773 is an apocalyptic number.

It is an amenable number.

67736773 is a deficient number, since it is larger than the sum of its proper divisors (6892523).

67736773 is a wasteful number, since it uses less digits than its factorization.

67736773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744.

The product of its digits is 777924, while the sum is 46.

The square root of 67736773 is about 8230.2352943279. The cubic root of 67736773 is about 407.6381615899.

The spelling of 67736773 in words is "sixty-seven million, seven hundred thirty-six thousand, seven hundred seventy-three".