1304487 has 12 divisors (see below), whose sum is σ = 1896544. Its totient is φ = 864000.

The previous prime is 1304477. The next prime is 1304503. The reversal of 1304487 is 7844031.

It is not a de Polignac number, because 1304487 - 2⁸ = 1304231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1304487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1362 + ... + 2112.

2^1304487 is an apocalyptic number.

1304487 is a deficient number, since it is larger than the sum of its proper divisors (592057).

1304487 is a wasteful number, since it uses less digits than its factorization.

1304487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1304487 is about 1142.1414098088. The cubic root of 1304487 is about 109.2647102674.

It can be divided in two parts, 13044 and 87, that added together give a palindrome (13131).

The spelling of 1304487 in words is "one million, three hundred four thousand, four hundred eighty-seven".