11897799 has 16 divisors (see below), whose sum is σ = 16368000. Its totient is φ = 7682976.

The previous prime is 11897791. The next prime is 11897803. The reversal of 11897799 is 99779811.

It is not a de Polignac number, because 11897799 - 2³ = 11897791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11897791) 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, 18912 + ... + 19530.

It is an arithmetic number, because the mean of its divisors is an integer number (1023000).

Almost surely, 2^11897799 is an apocalyptic number.

11897799 is a deficient number, since it is larger than the sum of its proper divisors (4470201).

11897799 is a wasteful number, since it uses less digits than its factorization.

11897799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814.

The product of its digits is 285768, while the sum is 51.

The square root of 11897799 is about 3449.3186283671. The cubic root of 11897799 is about 228.2910449091.

It can be divided in two parts, 11 and 897799, that multiplied together give a palindrome (9875789).

The spelling of 11897799 in words is "eleven million, eight hundred ninety-seven thousand, seven hundred ninety-nine".