10686398 has 16 divisors (see below), whose sum is σ = 17608320. Its totient is φ = 4841496.

The previous prime is 10686391. The next prime is 10686419. The reversal of 10686398 is 89368601.

It is a happy number.

It is a super-2 number, since 2×10686398² = 228398204428808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10686391) 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, 5240 + ... + 6987.

It is an arithmetic number, because the mean of its divisors is an integer number (1100520).

Almost surely, 2^10686398 is an apocalyptic number.

10686398 is a deficient number, since it is larger than the sum of its proper divisors (6921922).

10686398 is a wasteful number, since it uses less digits than its factorization.

10686398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12271.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 10686398 is about 3269.0056592181. The cubic root of 10686398 is about 220.2641317925.

The spelling of 10686398 in words is "ten million, six hundred eighty-six thousand, three hundred ninety-eight".