770740 has 24 divisors (see below), whose sum is σ = 1640520. Its totient is φ = 304128.

The previous prime is 770669. The next prime is 770741. The reversal of 770740 is 47077.

770740 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 4 ways, for example, as 3364 + 767376 = 58^2 + 876^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770741) 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, 1564 + ... + 1996.

It is an arithmetic number, because the mean of its divisors is an integer number (68355).

2⁷⁷⁰⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

770740 is an abundant number, since it is smaller than the sum of its proper divisors (869780).

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

770740 is a wasteful number, since it uses less digits than its factorization.

770740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 770740 is about 877.9179916143. The cubic root of 770740 is about 91.6859169855.

The spelling of 770740 in words is "seven hundred seventy thousand, seven hundred forty", and thus it is an iban number.