77683087 has 4 divisors (see below), whose sum is σ = 78204600. Its totient is φ = 77161576.

The previous prime is 77683063. The next prime is 77683127. The reversal of 77683087 is 78038677.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 77683087 - 2⁷ = 77682959 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 (77683037) 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 3 ways as a sum of consecutive naturals, for example, 260533 + ... + 260830.

It is an arithmetic number, because the mean of its divisors is an integer number (19551150).

Almost surely, 2^77683087 is an apocalyptic number.

77683087 is a deficient number, since it is larger than the sum of its proper divisors (521513).

77683087 is a wasteful number, since it uses less digits than its factorization.

77683087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521512.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 77683087 is about 8813.8009394358. The cubic root of 77683087 is about 426.6864241204.

The spelling of 77683087 in words is "seventy-seven million, six hundred eighty-three thousand, eighty-seven".