11726890 has 32 divisors (see below), whose sum is σ = 24261120. Its totient is φ = 3997824.

The previous prime is 11726887. The next prime is 11726903. The reversal of 11726890 is 9862711.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15951 + ... + 16669.

It is an arithmetic number, because the mean of its divisors is an integer number (758160).

Almost surely, 2^11726890 is an apocalyptic number.

11726890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11726890 is an abundant number, since it is smaller than the sum of its proper divisors (12534230).

11726890 is a wasteful number, since it uses less digits than its factorization.

11726890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 11726890 is about 3424.4547011167. The cubic root of 11726890 is about 227.1926534398.

The spelling of 11726890 in words is "eleven million, seven hundred twenty-six thousand, eight hundred ninety".