1421827 has 8 divisors (see below), whose sum is σ = 1632960. Its totient is φ = 1224360.

The previous prime is 1421813. The next prime is 1421857. The reversal of 1421827 is 7281241.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-1421827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421857) 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, 3193 + ... + 3610.

It is an arithmetic number, because the mean of its divisors is an integer number (204120).

2^1421827 is an apocalyptic number.

1421827 is a deficient number, since it is larger than the sum of its proper divisors (211133).

1421827 is a wasteful number, since it uses less digits than its factorization.

1421827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6833.

The product of its digits is 896, while the sum is 25.

The square root of 1421827 is about 1192.4038745325. The cubic root of 1421827 is about 112.4472707627.

The spelling of 1421827 in words is "one million, four hundred twenty-one thousand, eight hundred twenty-seven".