1400879 has 2 divisors, whose sum is σ = 1400880. Its totient is φ = 1400878.

The previous prime is 1400873. The next prime is 1400881. The reversal of 1400879 is 9780041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400879 - 2⁴ = 1400863 is a prime.

Together with 1400881, 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 (1400873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700439 + 700440.

It is an arithmetic number, because the mean of its divisors is an integer number (700440).

2^1400879 is an apocalyptic number.

1400879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400879 is an equidigital number, since it uses as much as digits as its factorization.

1400879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1400879 is about 1183.5873436295. The cubic root of 1400879 is about 111.8923018714.

The spelling of 1400879 in words is "one million, four hundred thousand, eight hundred seventy-nine".