76406645 has 16 divisors (see below), whose sum is σ = 105719040. Its totient is φ = 51926784.

The previous prime is 76406641. The next prime is 76406651. The reversal of 76406645 is 54660467.

It is not a de Polignac number, because 76406645 - 2² = 76406641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76406599 and 76406608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76406641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5705 + ... + 13614.

It is an arithmetic number, because the mean of its divisors is an integer number (6607440).

Almost surely, 2^76406645 is an apocalyptic number.

It is an amenable number.

76406645 is a deficient number, since it is larger than the sum of its proper divisors (29312395).

76406645 is a wasteful number, since it uses less digits than its factorization.

76406645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19444.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 76406645 is about 8741.0894629903. The cubic root of 76406645 is about 424.3364871497.

The spelling of 76406645 in words is "seventy-six million, four hundred six thousand, six hundred forty-five".