76540273 has 8 divisors (see below), whose sum is σ = 81400680. Its totient is φ = 71719680.

The previous prime is 76540259. The next prime is 76540279. The reversal of 76540273 is 37204567.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41576704 + 34963569 = 6448^2 + 5913^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 76540273 - 2⁵ = 76540241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76540279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5938 + ... + 13723.

It is an arithmetic number, because the mean of its divisors is an integer number (10175085).

Almost surely, 2^76540273 is an apocalyptic number.

It is an amenable number.

76540273 is a deficient number, since it is larger than the sum of its proper divisors (4860407).

76540273 is a wasteful number, since it uses less digits than its factorization.

76540273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19907.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 76540273 is about 8748.7297935186. The cubic root of 76540273 is about 424.5837178803.

The spelling of 76540273 in words is "seventy-six million, five hundred forty thousand, two hundred seventy-three".