872109463 has 2 divisors, whose sum is σ = 872109464. Its totient is φ = 872109462.

The previous prime is 872109451. The next prime is 872109493. The reversal of 872109463 is 364901278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 872109463 - 2¹³ = 872101271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872109493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436054731 + 436054732.

It is an arithmetic number, because the mean of its divisors is an integer number (436054732).

Almost surely, 2^872109463 is an apocalyptic number.

872109463 is a deficient number, since it is larger than the sum of its proper divisors (1).

872109463 is an equidigital number, since it uses as much as digits as its factorization.

872109463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 872109463 is about 29531.4995047661. The cubic root of 872109463 is about 955.4112107582.

The spelling of 872109463 in words is "eight hundred seventy-two million, one hundred nine thousand, four hundred sixty-three".