779942 has 4 divisors (see below), whose sum is σ = 1169916. Its totient is φ = 389970.

The previous prime is 779939. The next prime is 779971. The reversal of 779942 is 249977.

It is a happy number.

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

It is a super-3 number, since 3×779942³ = 1423338438814694664, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 779896 and 779905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194984 + ... + 194987.

It is an arithmetic number, because the mean of its divisors is an integer number (292479).

2⁷⁷⁹⁹⁴² is an apocalyptic number.

779942 is a deficient number, since it is larger than the sum of its proper divisors (389974).

779942 is a wasteful number, since it uses less digits than its factorization.

779942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389973.

The product of its digits is 31752, while the sum is 38.

The square root of 779942 is about 883.1432499884. The cubic root of 779942 is about 92.0493591467.

The spelling of 779942 in words is "seven hundred seventy-nine thousand, nine hundred forty-two".