1427706 has 40 divisors (see below), whose sum is σ = 3659040. Its totient is φ = 407592.

The previous prime is 1427687. The next prime is 1427707. The reversal of 1427706 is 6077241.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1427706.

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 19 ways as a sum of consecutive naturals, for example, 505 + ... + 1763.

It is an arithmetic number, because the mean of its divisors is an integer number (91476).

2^1427706 is an apocalyptic number.

1427706 is the 756-th heptagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829520).

1427706 is an abundant number, since it is smaller than the sum of its proper divisors (2231334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1427706 is a wasteful number, since it uses less digits than its factorization.

1427706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 1427706 is about 1194.8665197418. The cubic root of 1427706 is about 112.6020407514.

The spelling of 1427706 in words is "one million, four hundred twenty-seven thousand, seven hundred six".