11920870 has 32 divisors (see below), whose sum is σ = 23351328. Its totient is φ = 4355328.

The previous prime is 11920837. The next prime is 11920871. The reversal of 11920870 is 7802911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11920871) 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, 13482 + ... + 14338.

It is an arithmetic number, because the mean of its divisors is an integer number (729729).

Almost surely, 2^11920870 is an apocalyptic number.

11920870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11920870 is a deficient number, since it is larger than the sum of its proper divisors (11430458).

11920870 is a wasteful number, since it uses less digits than its factorization.

11920870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 11920870 is about 3452.6612923946. The cubic root of 11920870 is about 228.4385092150.

The spelling of 11920870 in words is "eleven million, nine hundred twenty thousand, eight hundred seventy".