8999427 has 8 divisors (see below), whose sum is σ = 12278464. Its totient is φ = 5860008.

The previous prime is 8999423. The next prime is 8999429. The reversal of 8999427 is 7249998.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8999427 - 2² = 8999423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8999423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34753 + ... + 35010.

It is an arithmetic number, because the mean of its divisors is an integer number (1534808).

Almost surely, 2^8999427 is an apocalyptic number.

8999427 is a deficient number, since it is larger than the sum of its proper divisors (3279037).

8999427 is a wasteful number, since it uses less digits than its factorization.

8999427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69809.

The product of its digits is 326592, while the sum is 48.

The square root of 8999427 is about 2999.9044984799. The cubic root of 8999427 is about 208.0039678114.

The spelling of 8999427 in words is "eight million, nine hundred ninety-nine thousand, four hundred twenty-seven".