1400853 has 4 divisors (see below), whose sum is σ = 1867808. Its totient is φ = 933900.

The previous prime is 1400821. The next prime is 1400863. The reversal of 1400853 is 3580041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1400853 - 2⁵ = 1400821 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

1400853 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233473 + ... + 233478.

It is an arithmetic number, because the mean of its divisors is an integer number (466952).

2^1400853 is an apocalyptic number.

It is an amenable number.

1400853 is a deficient number, since it is larger than the sum of its proper divisors (466955).

1400853 is an equidigital number, since it uses as much as digits as its factorization.

1400853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466954.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1400853 is about 1183.5763600208. The cubic root of 1400853 is about 111.8916096351.

Adding to 1400853 its reverse (3580041), we get a palindrome (4980894).

The spelling of 1400853 in words is "one million, four hundred thousand, eight hundred fifty-three".