1421937 has 24 divisors (see below), whose sum is σ = 2291328. Its totient is φ = 842400.

The previous prime is 1421933. The next prime is 1421963. The reversal of 1421937 is 7391241.

It is not a de Polignac number, because 1421937 - 2² = 1421933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421937.

It is not an unprimeable number, because it can be changed into a prime (1421933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5112 + ... + 5382.

It is an arithmetic number, because the mean of its divisors is an integer number (95472).

2^1421937 is an apocalyptic number.

It is an amenable number.

1421937 is a deficient number, since it is larger than the sum of its proper divisors (869391).

1421937 is a wasteful number, since it uses less digits than its factorization.

1421937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 338 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 1421937 is about 1192.4499989517. The cubic root of 1421937 is about 112.4501705249.

The spelling of 1421937 in words is "one million, four hundred twenty-one thousand, nine hundred thirty-seven".