1409887 has 4 divisors (see below), whose sum is σ = 1419376. Its totient is φ = 1400400.

The previous prime is 1409879. The next prime is 1409899. The reversal of 1409887 is 7889041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1409887 - 2³ = 1409879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4518 + ... + 4819.

It is an arithmetic number, because the mean of its divisors is an integer number (354844).

2^1409887 is an apocalyptic number.

1409887 is a deficient number, since it is larger than the sum of its proper divisors (9489).

1409887 is an equidigital number, since it uses as much as digits as its factorization.

1409887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9488.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1409887 is about 1187.3866261669. The cubic root of 1409887 is about 112.1316214071.

The spelling of 1409887 in words is "one million, four hundred nine thousand, eight hundred eighty-seven".