76908805 has 8 divisors (see below), whose sum is σ = 92879352. Its totient is φ = 61134528.

The previous prime is 76908709. The next prime is 76908809. The reversal of 76908805 is 50880967.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24621444 + 52287361 = 4962^2 + 7231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76908805 - 2¹³ = 76900613 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 (76908809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48202 + ... + 49771.

It is an arithmetic number, because the mean of its divisors is an integer number (11609919).

Almost surely, 2^76908805 is an apocalyptic number.

It is an amenable number.

76908805 is a deficient number, since it is larger than the sum of its proper divisors (15970547).

76908805 is a wasteful number, since it uses less digits than its factorization.

76908805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98135.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 76908805 is about 8769.7665305298. The cubic root of 76908805 is about 425.2640665732.

The spelling of 76908805 in words is "seventy-six million, nine hundred eight thousand, eight hundred five".