1001406671 has 4 divisors (see below), whose sum is σ = 1033710144. Its totient is φ = 969103200.

The previous prime is 1001406631. The next prime is 1001406719. The reversal of 1001406671 is 1766041001.

1001406671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001406671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001406671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001406611) 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, 16151690 + ... + 16151751.

It is an arithmetic number, because the mean of its divisors is an integer number (258427536).

Almost surely, 2^1001406671 is an apocalyptic number.

1001406671 is a deficient number, since it is larger than the sum of its proper divisors (32303473).

1001406671 is an equidigital number, since it uses as much as digits as its factorization.

1001406671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32303472.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1001406671 is about 31645.0102069821. The cubic root of 1001406671 is about 1000.4686706468.

Adding to 1001406671 its reverse (1766041001), we get a palindrome (2767447672).

The spelling of 1001406671 in words is "one billion, one million, four hundred six thousand, six hundred seventy-one".