76899077 has 4 divisors (see below), whose sum is σ = 77660556. Its totient is φ = 76137600.

The previous prime is 76899047. The next prime is 76899091. The reversal of 76899077 is 77099867.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77099867 = 13 ⋅5930759.

It can be written as a sum of positive squares in 2 ways, for example, as 54184321 + 22714756 = 7361^2 + 4766^2 .

It is a cyclic number.

It is not a de Polignac number, because 76899077 - 2⁶ = 76899013 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 (76899037) 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, 380588 + ... + 380789.

It is an arithmetic number, because the mean of its divisors is an integer number (19415139).

Almost surely, 2^76899077 is an apocalyptic number.

It is an amenable number.

76899077 is a deficient number, since it is larger than the sum of its proper divisors (761479).

76899077 is a wasteful number, since it uses less digits than its factorization.

76899077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761478.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The square root of 76899077 is about 8769.2118802091. The cubic root of 76899077 is about 425.2461356255.

The spelling of 76899077 in words is "seventy-six million, eight hundred ninety-nine thousand, seventy-seven".