1400863 has 2 divisors, whose sum is σ = 1400864. Its totient is φ = 1400862.

The previous prime is 1400821. The next prime is 1400873. The reversal of 1400863 is 3680041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400863 is a prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700431 + 700432.

It is an arithmetic number, because the mean of its divisors is an integer number (700432).

2^1400863 is an apocalyptic number.

1400863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400863 is an equidigital number, since it uses as much as digits as its factorization.

1400863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1400863 is about 1183.5805844977. The cubic root of 1400863 is about 111.8918758808.

The spelling of 1400863 in words is "one million, four hundred thousand, eight hundred sixty-three".