1407889 has 8 divisors (see below), whose sum is σ = 1703808. Its totient is φ = 1135680.

The previous prime is 1407883. The next prime is 1407893. The reversal of 1407889 is 9887041.

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

It is not a de Polignac number, because 1407889 - 2¹¹ = 1405841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1407883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5797 + ... + 6034.

It is an arithmetic number, because the mean of its divisors is an integer number (212976).

2^1407889 is an apocalyptic number.

It is an amenable number.

1407889 is a deficient number, since it is larger than the sum of its proper divisors (295919).

1407889 is a wasteful number, since it uses less digits than its factorization.

1407889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11855.

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

The square root of 1407889 is about 1186.5449843980. The cubic root of 1407889 is about 112.0786278234.

The spelling of 1407889 in words is "one million, four hundred seven thousand, eight hundred eighty-nine".