76770745 has 8 divisors (see below), whose sum is σ = 94614984. Its totient is φ = 59756544.

The previous prime is 76770721. The next prime is 76770763. The reversal of 76770745 is 54707767.

It can be written as a sum of positive squares in 4 ways, for example, as 42758521 + 34012224 = 6539^2 + 5832^2 .

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 76770745 - 2⁵ = 76770713 is a prime.

It is a Duffinian 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, 207304 + ... + 207673.

It is an arithmetic number, because the mean of its divisors is an integer number (11826873).

Almost surely, 2^76770745 is an apocalyptic number.

It is an amenable number.

76770745 is a deficient number, since it is larger than the sum of its proper divisors (17844239).

76770745 is a wasteful number, since it uses less digits than its factorization.

76770745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415019.

The product of its (nonzero) digits is 288120, while the sum is 43.

The square root of 76770745 is about 8761.8916336599. The cubic root of 76770745 is about 425.0094484635.

The spelling of 76770745 in words is "seventy-six million, seven hundred seventy thousand, seven hundred forty-five".