76540445 has 8 divisors (see below), whose sum is σ = 92881080. Its totient is φ = 60544000.

The previous prime is 76540423. The next prime is 76540507. The reversal of 76540445 is 54404567.

It can be written as a sum of positive squares in 4 ways, for example, as 972196 + 75568249 = 986^2 + 8693^2 .

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

It is not a de Polignac number, because 76540445 - 2¹² = 76536349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85556 + ... + 86445.

It is an arithmetic number, because the mean of its divisors is an integer number (11610135).

Almost surely, 2^76540445 is an apocalyptic number.

It is an amenable number.

76540445 is a deficient number, since it is larger than the sum of its proper divisors (16340635).

76540445 is a wasteful number, since it uses less digits than its factorization.

76540445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172095.

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 76540445 is about 8748.7396235115. The cubic root of 76540445 is about 424.5840359191.

The spelling of 76540445 in words is "seventy-six million, five hundred forty thousand, four hundred forty-five".