12699210 has 16 divisors (see below), whose sum is σ = 30478176. Its totient is φ = 3386448.

The previous prime is 12699209. The next prime is 12699223. The reversal of 12699210 is 1299621.

It is a happy number.

It is a super-2 number, since 2×12699210² = 322539869248200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 423307 = 12699210 / (1 + 2 + 6 + 9 + 9 + 2 + 1 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211624 + ... + 211683.

It is an arithmetic number, because the mean of its divisors is an integer number (1904886).

Almost surely, 2^12699210 is an apocalyptic number.

12699210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12699210 is an abundant number, since it is smaller than the sum of its proper divisors (17778966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12699210 is a wasteful number, since it uses less digits than its factorization.

12699210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423317.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 12699210 is about 3563.5950948445. The cubic root of 12699210 is about 233.3058176170.

The spelling of 12699210 in words is "twelve million, six hundred ninety-nine thousand, two hundred ten".