872671399 has 2 divisors, whose sum is σ = 872671400. Its totient is φ = 872671398.

The previous prime is 872671391. The next prime is 872671417. The reversal of 872671399 is 993176278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 872671399 - 2³ = 872671391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872671391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436335699 + 436335700.

It is an arithmetic number, because the mean of its divisors is an integer number (436335700).

Almost surely, 2^872671399 is an apocalyptic number.

872671399 is a deficient number, since it is larger than the sum of its proper divisors (1).

872671399 is an equidigital number, since it uses as much as digits as its factorization.

872671399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 52.

The square root of 872671399 is about 29541.0121525990. The cubic root of 872671399 is about 955.6163702812.

The spelling of 872671399 in words is "eight hundred seventy-two million, six hundred seventy-one thousand, three hundred ninety-nine".