11720906 has 16 divisors (see below), whose sum is σ = 17998848. Its totient is φ = 5722800.

The previous prime is 11720903. The next prime is 11720977. The reversal of 11720906 is 60902711.

11720906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11720903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23051 + ... + 23553.

It is an arithmetic number, because the mean of its divisors is an integer number (1124928).

Almost surely, 2^11720906 is an apocalyptic number.

11720906 is a deficient number, since it is larger than the sum of its proper divisors (6277942).

11720906 is a wasteful number, since it uses less digits than its factorization.

11720906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 11720906 is about 3423.5808738804. The cubic root of 11720906 is about 227.1540028925.

The spelling of 11720906 in words is "eleven million, seven hundred twenty thousand, nine hundred six".