1390707 has 6 divisors (see below), whose sum is σ = 2008812. Its totient is φ = 927132.

The previous prime is 1390703. The next prime is 1390709. The reversal of 1390707 is 7070931.

It is not a de Polignac number, because 1390707 - 2² = 1390703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1390703) 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 5 ways as a sum of consecutive naturals, for example, 77253 + ... + 77270.

It is an arithmetic number, because the mean of its divisors is an integer number (334802).

2^1390707 is an apocalyptic number.

1390707 is a deficient number, since it is larger than the sum of its proper divisors (618105).

1390707 is a wasteful number, since it uses less digits than its factorization.

1390707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154529 (or 154526 counting only the distinct ones).

The product of its (nonzero) digits is 1323, while the sum is 27.

The square root of 1390707 is about 1179.2824089250. The cubic root of 1390707 is about 111.6208212587.

The spelling of 1390707 in words is "one million, three hundred ninety thousand, seven hundred seven".