999997412 has 12 divisors (see below), whose sum is σ = 1751922816. Its totient is φ = 499448040.

The previous prime is 999997403. The next prime is 999997457. The reversal of 999997412 is 214799999.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133568 + ... + 140855.

It is an arithmetic number, because the mean of its divisors is an integer number (145993568).

Almost surely, 2^999997412 is an apocalyptic number.

It is an amenable number.

999997412 is a deficient number, since it is larger than the sum of its proper divisors (751925404).

999997412 is a wasteful number, since it uses less digits than its factorization.

999997412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275338 (or 275336 counting only the distinct ones).

The product of its digits is 3306744, while the sum is 59.

The square root of 999997412 is about 31622.7356817844. The cubic root of 999997412 is about 999.9991373326. Note that the first 3 decimals are identical.

The spelling of 999997412 in words is "nine hundred ninety-nine million, nine hundred ninety-seven thousand, four hundred twelve".