1842479 has 2 divisors, whose sum is σ = 1842480. Its totient is φ = 1842478.

The previous prime is 1842473. The next prime is 1842481. The reversal of 1842479 is 9742481.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1842479 is a prime.

It is a Sophie Germain prime.

Together with 1842481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1842473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 921239 + 921240.

It is an arithmetic number, because the mean of its divisors is an integer number (921240).

2^1842479 is an apocalyptic number.

1842479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1842479 is an equidigital number, since it uses as much as digits as its factorization.

1842479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 1842479 is about 1357.3794605784. The cubic root of 1842479 is about 122.5935201448.

The spelling of 1842479 in words is "one million, eight hundred forty-two thousand, four hundred seventy-nine".