76855749 has 16 divisors (see below), whose sum is σ = 105348672. Its totient is φ = 49811328.

The previous prime is 76855747. The next prime is 76855799. The reversal of 76855749 is 94755867.

It is not a de Polignac number, because 76855749 - 2¹ = 76855747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76855747) 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, 28779 + ... + 31335.

It is an arithmetic number, because the mean of its divisors is an integer number (6584292).

Almost surely, 2^76855749 is an apocalyptic number.

It is an amenable number.

76855749 is a deficient number, since it is larger than the sum of its proper divisors (28492923).

76855749 is a wasteful number, since it uses less digits than its factorization.

76855749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836.

The product of its digits is 2116800, while the sum is 51.

The square root of 76855749 is about 8766.7410706602. The cubic root of 76855749 is about 425.1662537560.

The spelling of 76855749 in words is "seventy-six million, eight hundred fifty-five thousand, seven hundred forty-nine".