8712399 has 4 divisors (see below), whose sum is σ = 11616536. Its totient is φ = 5808264.

The previous prime is 8712397. The next prime is 8712421. The reversal of 8712399 is 9932178.

8712399 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 not a de Polignac number, because 8712399 - 2¹ = 8712397 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 (8712397) 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, 1452064 + ... + 1452069.

It is an arithmetic number, because the mean of its divisors is an integer number (2904134).

Almost surely, 2^8712399 is an apocalyptic number.

8712399 is a deficient number, since it is larger than the sum of its proper divisors (2904137).

8712399 is a wasteful number, since it uses less digits than its factorization.

8712399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904136.

The product of its digits is 27216, while the sum is 39.

The square root of 8712399 is about 2951.6773197624. The cubic root of 8712399 is about 205.7686707923.

The spelling of 8712399 in words is "eight million, seven hundred twelve thousand, three hundred ninety-nine".