1424387 has 4 divisors (see below), whose sum is σ = 1438320. Its totient is φ = 1410456.

The previous prime is 1424369. The next prime is 1424399. The reversal of 1424387 is 7834241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7834241 = 877 ⋅8933.

It is a cyclic number.

It is not a de Polignac number, because 1424387 - 2⁶ = 1424323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1424317) 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, 6812 + ... + 7017.

It is an arithmetic number, because the mean of its divisors is an integer number (359580).

2^1424387 is an apocalyptic number.

1424387 is a deficient number, since it is larger than the sum of its proper divisors (13933).

1424387 is a wasteful number, since it uses less digits than its factorization.

1424387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13932.

The product of its digits is 5376, while the sum is 29.

The square root of 1424387 is about 1193.4768535669. The cubic root of 1424387 is about 112.5147174161.

The spelling of 1424387 in words is "one million, four hundred twenty-four thousand, three hundred eighty-seven".