1427939 has 4 divisors (see below), whose sum is σ = 1433880. Its totient is φ = 1422000.

The previous prime is 1427927. The next prime is 1427957. The reversal of 1427939 is 9397241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1427939 - 2¹² = 1423843 is a prime.

It is a d-powerful number, because it can be written as 1 + 4⁸ + 2⁷ + 7⁷ + 9³ + 3¹² + 9⁴ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1427899 and 1427908.

It is not an unprimeable number, because it can be changed into a prime (1427969) 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, 2594 + ... + 3095.

It is an arithmetic number, because the mean of its divisors is an integer number (358470).

2^1427939 is an apocalyptic number.

1427939 is a deficient number, since it is larger than the sum of its proper divisors (5941).

1427939 is an equidigital number, since it uses as much as digits as its factorization.

1427939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940.

The product of its digits is 13608, while the sum is 35.

The square root of 1427939 is about 1194.9640161946. The cubic root of 1427939 is about 112.6081659267.

The spelling of 1427939 in words is "one million, four hundred twenty-seven thousand, nine hundred thirty-nine".