779491 has 4 divisors (see below), whose sum is σ = 806400. Its totient is φ = 752584.

The previous prime is 779489. The next prime is 779507. The reversal of 779491 is 194977.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 779491 - 2¹ = 779489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 779491.

It is not an unprimeable number, because it can be changed into a prime (779591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13411 + ... + 13468.

It is an arithmetic number, because the mean of its divisors is an integer number (201600).

2⁷⁷⁹⁴⁹¹ is an apocalyptic number.

779491 is a deficient number, since it is larger than the sum of its proper divisors (26909).

779491 is a wasteful number, since it uses less digits than its factorization.

779491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26908.

The product of its digits is 15876, while the sum is 37.

The square root of 779491 is about 882.8878751008. The cubic root of 779491 is about 92.0316132693.

The spelling of 779491 in words is "seven hundred seventy-nine thousand, four hundred ninety-one".