772806730 has 16 divisors (see below), whose sum is σ = 1403816040. Its totient is φ = 306286272.

The previous prime is 772806667. The next prime is 772806731. The reversal of 772806730 is 37608277.

It can be written as a sum of positive squares in 4 ways, for example, as 470846601 + 301960129 = 21699^2 + 17377^2 .

It is not an unprimeable number, because it can be changed into a prime (772806731) 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, 353409 + ... + 355588.

Almost surely, 2^772806730 is an apocalyptic number.

772806730 is a deficient number, since it is larger than the sum of its proper divisors (631009310).

772806730 is a wasteful number, since it uses less digits than its factorization.

772806730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709113.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 772806730 is about 27799.4016122650. The cubic root of 772806730 is about 917.6779540340.

The spelling of 772806730 in words is "seven hundred seventy-two million, eight hundred six thousand, seven hundred thirty".