11989930 has 16 divisors (see below), whose sum is σ = 22851720. Its totient is φ = 4513792.

The previous prime is 11989927. The next prime is 11989951. The reversal of 11989930 is 3998911.

It can be written as a sum of positive squares in 4 ways, for example, as 11015761 + 974169 = 3319^2 + 987^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35095 + ... + 35434.

Almost surely, 2^11989930 is an apocalyptic number.

11989930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11989930 is a deficient number, since it is larger than the sum of its proper divisors (10861790).

11989930 is a wasteful number, since it uses less digits than its factorization.

11989930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70553.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 11989930 is about 3462.6478307792. The cubic root of 11989930 is about 228.8787901864.

The spelling of 11989930 in words is "eleven million, nine hundred eighty-nine thousand, nine hundred thirty".