9890726 has 8 divisors (see below), whose sum is σ = 15045264. Its totient is φ = 4875640.

The previous prime is 9890693. The next prime is 9890737. The reversal of 9890726 is 6270989.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34685 + ... + 34968.

It is an arithmetic number, because the mean of its divisors is an integer number (1880658).

Almost surely, 2^9890726 is an apocalyptic number.

9890726 is a deficient number, since it is larger than the sum of its proper divisors (5154538).

9890726 is a wasteful number, since it uses less digits than its factorization.

9890726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69726.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 9890726 is about 3144.9524638697. The cubic root of 9890726 is about 214.6558474587.

The spelling of 9890726 in words is "nine million, eight hundred ninety thousand, seven hundred twenty-six".