1427679 has 48 divisors (see below), whose sum is σ = 2553600. Its totient is φ = 784080.

The previous prime is 1427663. The next prime is 1427681. The reversal of 1427679 is 9767241.

It is a happy number.

It is not a de Polignac number, because 1427679 - 2⁴ = 1427663 is a prime.

Its product of digits (21168) is a multiple of the sum of its prime divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62062 + ... + 62084.

It is an arithmetic number, because the mean of its divisors is an integer number (53200).

2^1427679 is an apocalyptic number.

1427679 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1427679 is a deficient number, since it is larger than the sum of its proper divisors (1125921).

1427679 is a wasteful number, since it uses less digits than its factorization.

1427679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73 (or 56 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 1427679 is about 1194.8552213553. The cubic root of 1427679 is about 112.6013309241.

The spelling of 1427679 in words is "one million, four hundred twenty-seven thousand, six hundred seventy-nine".