11909970 has 32 divisors (see below), whose sum is σ = 31760640. Its totient is φ = 3175920.

The previous prime is 11909969. The next prime is 11909971. The reversal of 11909970 is 7990911.

It is an interprime number because it is at equal distance from previous prime (11909969) and next prime (11909971).

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (11909971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21786 + ... + 22325.

It is an arithmetic number, because the mean of its divisors is an integer number (992520).

Almost surely, 2^11909970 is an apocalyptic number.

11909970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11909970 is an abundant number, since it is smaller than the sum of its proper divisors (19850670).

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

11909970 is a wasteful number, since it uses less digits than its factorization.

11909970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44127 (or 44121 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 36.

The square root of 11909970 is about 3451.0824388878. The cubic root of 11909970 is about 228.3688627588.

The spelling of 11909970 in words is "eleven million, nine hundred nine thousand, nine hundred seventy".