1427705 has 16 divisors (see below), whose sum is σ = 1809408. Its totient is φ = 1080000.

The previous prime is 1427687. The next prime is 1427707. The reversal of 1427705 is 5077241.

It is a de Polignac number, because none of the positive numbers 2^k-1427705 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1427707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9380 + ... + 9530.

It is an arithmetic number, because the mean of its divisors is an integer number (113088).

2^1427705 is an apocalyptic number.

It is an amenable number.

1427705 is a deficient number, since it is larger than the sum of its proper divisors (381703).

1427705 is a wasteful number, since it uses less digits than its factorization.

1427705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 1427705 is about 1194.8661012850. The cubic root of 1427705 is about 112.6020144617.

The spelling of 1427705 in words is "one million, four hundred twenty-seven thousand, seven hundred five".