9909494 has 16 divisors (see below), whose sum is σ = 17078688. Its totient is φ = 4224192.

The previous prime is 9909461. The next prime is 9909499. The reversal of 9909494 is 4949099.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9909499) 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, 962 + ... + 4554.

It is an arithmetic number, because the mean of its divisors is an integer number (1067418).

Almost surely, 2^9909494 is an apocalyptic number.

9909494 is a deficient number, since it is larger than the sum of its proper divisors (7169194).

9909494 is a wasteful number, since it uses less digits than its factorization.

9909494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 9909494 is about 3147.9348786149. The cubic root of 9909494 is about 214.7915340083.

The spelling of 9909494 in words is "nine million, nine hundred nine thousand, four hundred ninety-four".