1403879 has 2 divisors, whose sum is σ = 1403880. Its totient is φ = 1403878.

The previous prime is 1403869. The next prime is 1403887. The reversal of 1403879 is 9783041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1403879 - 2¹⁶ = 1338343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1403819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701939 + 701940.

It is an arithmetic number, because the mean of its divisors is an integer number (701940).

2^1403879 is an apocalyptic number.

1403879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403879 is an equidigital number, since it uses as much as digits as its factorization.

1403879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1403879 is about 1184.8539994447. The cubic root of 1403879 is about 111.9721178468.

The spelling of 1403879 in words is "one million, four hundred three thousand, eight hundred seventy-nine".