1073871399 has 4 divisors (see below), whose sum is σ = 1431828536. Its totient is φ = 715914264.

The previous prime is 1073871307. The next prime is 1073871401. The reversal of 1073871399 is 9931783701.

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

It is not a de Polignac number, because 1073871399 - 2⁹ = 1073870887 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 (1073871499) 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, 178978564 + ... + 178978569.

It is an arithmetic number, because the mean of its divisors is an integer number (357957134).

Almost surely, 2^1073871399 is an apocalyptic number.

1073871399 is a deficient number, since it is larger than the sum of its proper divisors (357957137).

1073871399 is an equidigital number, since it uses as much as digits as its factorization.

1073871399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357957136.

The product of its (nonzero) digits is 285768, while the sum is 48.

The square root of 1073871399 is about 32769.9770979474. The cubic root of 1073871399 is about 1024.0411891264.

The spelling of 1073871399 in words is "one billion, seventy-three million, eight hundred seventy-one thousand, three hundred ninety-nine".