9920494 has 8 divisors (see below), whose sum is σ = 15393960. Its totient is φ = 4789176.

The previous prime is 9920479. The next prime is 9920501. The reversal of 9920494 is 4940299.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 85464 + ... + 85579.

It is an arithmetic number, because the mean of its divisors is an integer number (1924245).

Almost surely, 2^9920494 is an apocalyptic number.

9920494 is a deficient number, since it is larger than the sum of its proper divisors (5473466).

9920494 is a wasteful number, since it uses less digits than its factorization.

9920494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171074.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 9920494 is about 3149.6815712068. The cubic root of 9920494 is about 214.8709808221.

The spelling of 9920494 in words is "nine million, nine hundred twenty thousand, four hundred ninety-four".