76304645 has 4 divisors (see below), whose sum is σ = 91565580. Its totient is φ = 61043712.

The previous prime is 76304633. The next prime is 76304647. The reversal of 76304645 is 54640367.

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 31561924 + 44742721 = 5618^2 + 6689^2 .

It is a cyclic number.

It is not a de Polignac number, because 76304645 - 2⁴ = 76304629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76304647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7630460 + ... + 7630469.

It is an arithmetic number, because the mean of its divisors is an integer number (22891395).

Almost surely, 2^76304645 is an apocalyptic number.

It is an amenable number.

76304645 is a deficient number, since it is larger than the sum of its proper divisors (15260935).

76304645 is a wasteful number, since it uses less digits than its factorization.

76304645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15260934.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 76304645 is about 8735.2530014877. The cubic root of 76304645 is about 424.1475786410.

The spelling of 76304645 in words is "seventy-six million, three hundred four thousand, six hundred forty-five".