11898687 has 4 divisors (see below), whose sum is σ = 15864920. Its totient is φ = 7932456.

The previous prime is 11898683. The next prime is 11898701. The reversal of 11898687 is 78689811.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11898687 - 2² = 11898683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11898683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1983112 + ... + 1983117.

It is an arithmetic number, because the mean of its divisors is an integer number (3966230).

Almost surely, 2^11898687 is an apocalyptic number.

11898687 is a deficient number, since it is larger than the sum of its proper divisors (3966233).

11898687 is an equidigital number, since it uses as much as digits as its factorization.

11898687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966232.

The product of its digits is 193536, while the sum is 48.

The square root of 11898687 is about 3449.4473470398. The cubic root of 11898687 is about 228.2967243182.

The spelling of 11898687 in words is "eleven million, eight hundred ninety-eight thousand, six hundred eighty-seven".