12098865 has 16 divisors (see below), whose sum is σ = 19450368. Its totient is φ = 6422016.

The previous prime is 12098861. The next prime is 12098903. The reversal of 12098865 is 56889021.

12098865 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12098865 - 2² = 12098861 is a prime.

It is a super-3 number, since 3×12098865³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12098861) 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, 1537 + ... + 5153.

It is an arithmetic number, because the mean of its divisors is an integer number (1215648).

Almost surely, 2^12098865 is an apocalyptic number.

12098865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12098865 is a deficient number, since it is larger than the sum of its proper divisors (7351503).

12098865 is a wasteful number, since it uses less digits than its factorization.

12098865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 12098865 is about 3478.3422775799. The cubic root of 12098865 is about 229.5698640068.

The spelling of 12098865 in words is "twelve million, ninety-eight thousand, eight hundred sixty-five".