1387704 has 32 divisors (see below), whose sum is σ = 3525120. Its totient is φ = 455136.

The previous prime is 1387691. The next prime is 1387717. The reversal of 1387704 is 4077831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1387691) and next prime (1387717).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1177 + ... + 2039.

It is an arithmetic number, because the mean of its divisors is an integer number (110160).

2^1387704 is an apocalyptic number.

It is an amenable number.

1387704 is an abundant number, since it is smaller than the sum of its proper divisors (2137416).

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

1387704 is a wasteful number, since it uses less digits than its factorization.

1387704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 1387704 is about 1178.0084889338. The cubic root of 1387704 is about 111.5404211735.

The spelling of 1387704 in words is "one million, three hundred eighty-seven thousand, seven hundred four".