12697400 has 24 divisors (see below), whose sum is σ = 29521920. Its totient is φ = 5078880.

The previous prime is 12697393. The next prime is 12697409. The reversal of 12697400 is 479621.

It is a super-2 number, since 2×12697400² = 322447933520000, 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31544 + ... + 31943.

It is an arithmetic number, because the mean of its divisors is an integer number (1230080).

Almost surely, 2^12697400 is an apocalyptic number.

12697400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12697400 is an abundant number, since it is smaller than the sum of its proper divisors (16824520).

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

12697400 is a wasteful number, since it uses less digits than its factorization.

12697400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63503 (or 63494 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 12697400 is about 3563.3411287723. The cubic root of 12697400 is about 233.2947328437.

The spelling of 12697400 in words is "twelve million, six hundred ninety-seven thousand, four hundred".