76776673 has 4 divisors (see below), whose sum is σ = 77494320. Its totient is φ = 76059028.

The previous prime is 76776671. The next prime is 76776731. The reversal of 76776673 is 37667767.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76776673 - 2¹ = 76776671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76776671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358663 + ... + 358876.

It is an arithmetic number, because the mean of its divisors is an integer number (19373580).

Almost surely, 2^76776673 is an apocalyptic number.

It is an amenable number.

76776673 is a deficient number, since it is larger than the sum of its proper divisors (717647).

76776673 is a wasteful number, since it uses less digits than its factorization.

76776673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717646.

The product of its digits is 1555848, while the sum is 49.

The square root of 76776673 is about 8762.2299102455. The cubic root of 76776673 is about 425.0203874880.

The spelling of 76776673 in words is "seventy-six million, seven hundred seventy-six thousand, six hundred seventy-three".