67677793 has 6 divisors (see below), whose sum is σ = 70092854. Its totient is φ = 65343264.

The previous prime is 67677761. The next prime is 67677803. The reversal of 67677793 is 39777676.

It can be written as a sum of positive squares in 3 ways, for example, as 14197824 + 53479969 = 3768^2 + 7313^2 .

It is not a de Polignac number, because 67677793 - 2⁵ = 67677761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67677793.

It is not an unprimeable number, because it can be changed into a prime (67677703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39396 + ... + 41077.

Almost surely, 2^67677793 is an apocalyptic number.

It is an amenable number.

67677793 is a deficient number, since it is larger than the sum of its proper divisors (2415061).

67677793 is an equidigital number, since it uses as much as digits as its factorization.

67677793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80531 (or 80502 counting only the distinct ones).

The product of its digits is 2333772, while the sum is 52.

The square root of 67677793 is about 8226.6513843726. The cubic root of 67677793 is about 407.5198138584.

The spelling of 67677793 in words is "sixty-seven million, six hundred seventy-seven thousand, seven hundred ninety-three".