9890646 has 8 divisors (see below), whose sum is σ = 19781304. Its totient is φ = 3296880.

The previous prime is 9890623. The next prime is 9890663. The reversal of 9890646 is 6460989.

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

9890646 is an admirable number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 9890598 and 9890607.

It is a congruent number.

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, 824215 + ... + 824226.

It is an arithmetic number, because the mean of its divisors is an integer number (2472663).

Almost surely, 2^9890646 is an apocalyptic number.

9890646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9890646 is a wasteful number, since it uses less digits than its factorization.

9890646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648446.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 9890646 is about 3144.9397450508. The cubic root of 9890646 is about 214.6552687174.

The spelling of 9890646 in words is "nine million, eight hundred ninety thousand, six hundred forty-six".