1290704 has 10 divisors (see below), whose sum is σ = 2500770. Its totient is φ = 645344.

The previous prime is 1290683. The next prime is 1290719. The reversal of 1290704 is 4070921.

It can be written as a sum of positive squares in only one way, i.e., 906304 + 384400 = 952^2 + 620^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1290704.

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, 40319 + ... + 40350.

It is an arithmetic number, because the mean of its divisors is an integer number (250077).

2^1290704 is an apocalyptic number.

It is an amenable number.

1290704 is a deficient number, since it is larger than the sum of its proper divisors (1210066).

1290704 is an equidigital number, since it uses as much as digits as its factorization.

1290704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80677 (or 80671 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1290704 is about 1136.0915456071. The cubic root of 1290704 is about 108.8785224679.

The spelling of 1290704 in words is "one million, two hundred ninety thousand, seven hundred four".