1427723 has 4 divisors (see below), whose sum is σ = 1557528. Its totient is φ = 1297920.

The previous prime is 1427707. The next prime is 1427737. The reversal of 1427723 is 3277241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3277241 = 11 ⋅297931.

It is a cyclic number.

It is not a de Polignac number, because 1427723 - 2⁴ = 1427707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1427692 and 1427701.

It is not an unprimeable number, because it can be changed into a prime (1427753) 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, 64886 + ... + 64907.

It is an arithmetic number, because the mean of its divisors is an integer number (389382).

2^1427723 is an apocalyptic number.

1427723 is a deficient number, since it is larger than the sum of its proper divisors (129805).

1427723 is a wasteful number, since it uses less digits than its factorization.

1427723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129804.

The product of its digits is 2352, while the sum is 26.

The square root of 1427723 is about 1194.8736334860. The cubic root of 1427723 is about 112.6024876752.

It can be divided in two parts, 1 and 427723, that added together give a palindrome (427724).

The spelling of 1427723 in words is "one million, four hundred twenty-seven thousand, seven hundred twenty-three".