11898907 has 4 divisors (see below), whose sum is σ = 11905920. Its totient is φ = 11891896.

The previous prime is 11898881. The next prime is 11898973. The reversal of 11898907 is 70989811.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11898907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11818907) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 813 + ... + 4945.

It is an arithmetic number, because the mean of its divisors is an integer number (2976480).

Almost surely, 2^11898907 is an apocalyptic number.

11898907 is a deficient number, since it is larger than the sum of its proper divisors (7013).

11898907 is an equidigital number, since it uses as much as digits as its factorization.

11898907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012.

The product of its (nonzero) digits is 36288, while the sum is 43.

The square root of 11898907 is about 3449.4792360587. The cubic root of 11898907 is about 228.2981313354.

The spelling of 11898907 in words is "eleven million, eight hundred ninety-eight thousand, nine hundred seven".