772786960 has 40 divisors (see below), whose sum is σ = 1960070976. Its totient is φ = 281013120.

The previous prime is 772786957. The next prime is 772786961. The reversal of 772786960 is 69687277.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 772786898 and 772786907.

It is not an unprimeable number, because it can be changed into a prime (772786961) 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, 438204 + ... + 439963.

Almost surely, 2^772786960 is an apocalyptic number.

It is an amenable number.

772786960 is an abundant number, since it is smaller than the sum of its proper divisors (1187284016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

772786960 is a wasteful number, since it uses less digits than its factorization.

772786960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878191 (or 878185 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 52.

The square root of 772786960 is about 27799.0460267974. The cubic root of 772786960 is about 917.6701285984.

The spelling of 772786960 in words is "seven hundred seventy-two million, seven hundred eighty-six thousand, nine hundred sixty".