770842 has 8 divisors (see below), whose sum is σ = 1162836. Its totient is φ = 383232.

The previous prime is 770839. The next prime is 770843. The reversal of 770842 is 248077.

770842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 625681 + 145161 = 791^2 + 381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 770842.

It is not an unprimeable number, because it can be changed into a prime (770843) 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, 613 + ... + 1384.

2⁷⁷⁰⁸⁴² is an apocalyptic number.

770842 is a deficient number, since it is larger than the sum of its proper divisors (391994).

770842 is a wasteful number, since it uses less digits than its factorization.

770842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 770842 is about 877.9760816788. The cubic root of 770842 is about 91.6899613892.

It can be divided in two parts, 7708 and 42, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 770842 in words is "seven hundred seventy thousand, eight hundred forty-two".