779628 has 12 divisors (see below), whose sum is σ = 1819160. Its totient is φ = 259872.

The previous prime is 779621. The next prime is 779657. The reversal of 779628 is 826977.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (779621) by changing a digit.

779628 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32473 + ... + 32496.

2⁷⁷⁹⁶²⁸ is an apocalyptic number.

It is an amenable number.

779628 is an abundant number, since it is smaller than the sum of its proper divisors (1039532).

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

779628 is a wasteful number, since it uses less digits than its factorization.

779628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64976 (or 64974 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 779628 is about 882.9654579880. The cubic root of 779628 is about 92.0370046475.

The spelling of 779628 in words is "seven hundred seventy-nine thousand, six hundred twenty-eight".