1403421671 has 4 divisors (see below), whose sum is σ = 1405788912. Its totient is φ = 1401054432.

The previous prime is 1403421629. The next prime is 1403421683. The reversal of 1403421671 is 1761243041.

It is a happy number.

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 1403421671 - 2²² = 1399227367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403421601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182731 + ... + 1183916.

It is an arithmetic number, because the mean of its divisors is an integer number (351447228).

Almost surely, 2^1403421671 is an apocalyptic number.

1403421671 is a deficient number, since it is larger than the sum of its proper divisors (2367241).

1403421671 is an equidigital number, since it uses as much as digits as its factorization.

1403421671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367240.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1403421671 is about 37462.2699659271. The cubic root of 1403421671 is about 1119.5995781063.

The spelling of 1403421671 in words is "one billion, four hundred three million, four hundred twenty-one thousand, six hundred seventy-one".