9942207 has 24 divisors (see below), whose sum is σ = 14842800. Its totient is φ = 5913600.

The previous prime is 9942203. The next prime is 9942211. The reversal of 9942207 is 7022499.

It is an interprime number because it is at equal distance from previous prime (9942203) and next prime (9942211).

It is not a de Polignac number, because 9942207 - 2² = 9942203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21919 + ... + 22367.

It is an arithmetic number, because the mean of its divisors is an integer number (618450).

Almost surely, 2^9942207 is an apocalyptic number.

9942207 is a deficient number, since it is larger than the sum of its proper divisors (4900593).

9942207 is a wasteful number, since it uses less digits than its factorization.

9942207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 9942207 is about 3153.1265436072. The cubic root of 9942207 is about 215.0276294040.

The spelling of 9942207 in words is "nine million, nine hundred forty-two thousand, two hundred seven".