770004 has 36 divisors (see below), whose sum is σ = 1979796. Its totient is φ = 252288.

The previous prime is 769999. The next prime is 770027. The reversal of 770004 is 400077.

It can be written as a sum of positive squares in 2 ways, for example, as 608400 + 161604 = 780^2 + 402^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

770004 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2482 + ... + 2774.

2⁷⁷⁰⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (989898).

770004 is an abundant number, since it is smaller than the sum of its proper divisors (1209792).

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

770004 is a wasteful number, since it uses less digits than its factorization.

770004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 770004 is about 877.4987179478. The cubic root of 770004 is about 91.6567232557.

770004 divided by its sum of digits (18) gives a triangular number (42778 = T₂₉₂).

The spelling of 770004 in words is "seven hundred seventy thousand, four", and thus it is an iban number.