77067393 has 16 divisors (see below), whose sum is σ = 112539840. Its totient is φ = 46620864.

The previous prime is 77067391. The next prime is 77067407. The reversal of 77067393 is 39376077.

It is not a de Polignac number, because 77067393 - 2¹ = 77067391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77067391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14446 + ... + 19047.

It is an arithmetic number, because the mean of its divisors is an integer number (7033740).

Almost surely, 2^77067393 is an apocalyptic number.

It is an amenable number.

77067393 is a deficient number, since it is larger than the sum of its proper divisors (35472447).

77067393 is a wasteful number, since it uses less digits than its factorization.

77067393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33568.

The product of its (nonzero) digits is 166698, while the sum is 42.

The square root of 77067393 is about 8778.8036200840. The cubic root of 77067393 is about 425.5561678276.

The spelling of 77067393 in words is "seventy-seven million, sixty-seven thousand, three hundred ninety-three".