1407685 has 8 divisors (see below), whose sum is σ = 1788696. Its totient is φ = 1059840.

The previous prime is 1407671. The next prime is 1407709. The reversal of 1407685 is 5867041.

It can be written as a sum of positive squares in 4 ways, for example, as 45796 + 1361889 = 214^2 + 1167^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1407685 - 2⁷ = 1407557 is a prime.

It is a Duffinian number.

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, 8196 + ... + 8365.

It is an arithmetic number, because the mean of its divisors is an integer number (223587).

2^1407685 is an apocalyptic number.

It is an amenable number.

1407685 is a deficient number, since it is larger than the sum of its proper divisors (381011).

1407685 is a wasteful number, since it uses less digits than its factorization.

1407685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16583.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1407685 is about 1186.4590174127. The cubic root of 1407685 is about 112.0732142469.

It can be divided in two parts, 14076 and 85, that added together give a square (14161 = 119²).

The spelling of 1407685 in words is "one million, four hundred seven thousand, six hundred eighty-five".