1400771 has 4 divisors (see below), whose sum is σ = 1416600. Its totient is φ = 1384944.

The previous prime is 1400753. The next prime is 1400801. The reversal of 1400771 is 1770041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1400771 - 2¹⁴ = 1384387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7781 + ... + 7958.

It is an arithmetic number, because the mean of its divisors is an integer number (354150).

2^1400771 is an apocalyptic number.

1400771 is a deficient number, since it is larger than the sum of its proper divisors (15829).

1400771 is an equidigital number, since it uses as much as digits as its factorization.

1400771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15828.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 1400771 is about 1183.5417187408. The cubic root of 1400771 is about 111.8894263722.

The spelling of 1400771 in words is "one million, four hundred thousand, seven hundred seventy-one".