76404485 has 4 divisors (see below), whose sum is σ = 91685388. Its totient is φ = 61123584.

The previous prime is 76404481. The next prime is 76404499. The reversal of 76404485 is 58440467.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52911076 + 23493409 = 7274^2 + 4847^2 .

It is a cyclic number.

It is not a de Polignac number, because 76404485 - 2² = 76404481 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 (76404481) 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, 7640444 + ... + 7640453.

It is an arithmetic number, because the mean of its divisors is an integer number (22921347).

Almost surely, 2^76404485 is an apocalyptic number.

It is an amenable number.

76404485 is a deficient number, since it is larger than the sum of its proper divisors (15280903).

76404485 is a wasteful number, since it uses less digits than its factorization.

76404485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15280902.

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 76404485 is about 8740.9659077244. The cubic root of 76404485 is about 424.3324884772.

The spelling of 76404485 in words is "seventy-six million, four hundred four thousand, four hundred eighty-five".