76321045 has 4 divisors (see below), whose sum is σ = 91585260. Its totient is φ = 61056832.

The previous prime is 76321027. The next prime is 76321051. The reversal of 76321045 is 54012367.

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 19439281 + 56881764 = 4409^2 + 7542^2 .

It is a cyclic number.

It is not a de Polignac number, because 76321045 - 2⁹ = 76320533 is a prime.

It is a super-3 number, since 3×76321045³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7632100 + ... + 7632109.

It is an arithmetic number, because the mean of its divisors is an integer number (22896315).

Almost surely, 2^76321045 is an apocalyptic number.

It is an amenable number.

76321045 is a deficient number, since it is larger than the sum of its proper divisors (15264215).

76321045 is a wasteful number, since it uses less digits than its factorization.

76321045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15264214.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 76321045 is about 8736.1916760108. The cubic root of 76321045 is about 424.1779635191.

The spelling of 76321045 in words is "seventy-six million, three hundred twenty-one thousand, forty-five".