9942999 has 8 divisors (see below), whose sum is σ = 14462592. Its totient is φ = 6026040.

The previous prime is 9942941. The next prime is 9943057. The reversal of 9942999 is 9992499.

It is an interprime number because it is at equal distance from previous prime (9942941) and next prime (9943057).

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

It is not a de Polignac number, because 9942999 - 2¹¹ = 9940951 is a prime.

It is a super-2 number, since 2×9942999² = 197726458228002, which contains 22 as substring.

9942999 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150619 + ... + 150684.

It is an arithmetic number, because the mean of its divisors is an integer number (1807824).

Almost surely, 2^9942999 is an apocalyptic number.

9942999 is a deficient number, since it is larger than the sum of its proper divisors (4519593).

9942999 is a wasteful number, since it uses less digits than its factorization.

9942999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301317.

The product of its digits is 472392, while the sum is 51.

The square root of 9942999 is about 3153.2521307374. The cubic root of 9942999 is about 215.0333389800.

It can be divided in two parts, 994 and 2999, that added together give a palindrome (3993).

The spelling of 9942999 in words is "nine million, nine hundred forty-two thousand, nine hundred ninety-nine".