770742 has 32 divisors (see below), whose sum is σ = 1958400. Its totient is φ = 220104.

The previous prime is 770741. The next prime is 770761. The reversal of 770742 is 247077.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642 + ... + 1397.

It is an arithmetic number, because the mean of its divisors is an integer number (61200).

2⁷⁷⁰⁷⁴² is an apocalyptic number.

770742 is an abundant number, since it is smaller than the sum of its proper divisors (1187658).

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

770742 is a wasteful number, since it uses less digits than its factorization.

770742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 2051 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 770742 is about 877.9191306721. The cubic root of 770742 is about 91.6859962910.

The spelling of 770742 in words is "seven hundred seventy thousand, seven hundred forty-two", and thus it is an iban number.