12697406 has 4 divisors (see below), whose sum is σ = 19046112. Its totient is φ = 6348702.

The previous prime is 12697393. The next prime is 12697409. The reversal of 12697406 is 60479621.

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

It is a super-2 number, since 2×12697406² = 322448238257672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12697409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3174350 + ... + 3174353.

It is an arithmetic number, because the mean of its divisors is an integer number (4761528).

Almost surely, 2^12697406 is an apocalyptic number.

12697406 is a deficient number, since it is larger than the sum of its proper divisors (6348706).

12697406 is an equidigital number, since it uses as much as digits as its factorization.

12697406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6348705.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 12697406 is about 3563.3419706786. The cubic root of 12697406 is about 233.2947695905.

The spelling of 12697406 in words is "twelve million, six hundred ninety-seven thousand, four hundred six".