1429987 has 8 divisors (see below), whose sum is σ = 1549296. Its totient is φ = 1312032.

The previous prime is 1429969. The next prime is 1430027. The reversal of 1429987 is 7899241.

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

It is a cyclic number.

It is not a de Polignac number, because 1429987 - 2⁷ = 1429859 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1429907) 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, 3948 + ... + 4294.

It is an arithmetic number, because the mean of its divisors is an integer number (193662).

2^1429987 is an apocalyptic number.

1429987 is a deficient number, since it is larger than the sum of its proper divisors (119309).

1429987 is a wasteful number, since it uses less digits than its factorization.

1429987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its digits is 36288, while the sum is 40.

The square root of 1429987 is about 1195.8206387247. The cubic root of 1429987 is about 112.6619757315.

The spelling of 1429987 in words is "one million, four hundred twenty-nine thousand, nine hundred eighty-seven".