12693747 has 30 divisors (see below), whose sum is σ = 19776940. Its totient is φ = 7240640.

The previous prime is 12693743. The next prime is 12693749. The reversal of 12693747 is 74739621.

12693747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12693747 - 2² = 12693743 is a prime.

It is a super-2 number, since 2×12693747² = 322262425800018, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (63504) is a multiple of the sum of its prime factors (81).

It is not an unprimeable number, because it can be changed into a prime (12693743) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 746683 + ... + 746699.

Almost surely, 2^12693747 is an apocalyptic number.

12693747 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12693747 is a deficient number, since it is larger than the sum of its proper divisors (7083193).

12693747 is an frugal number, since it uses more digits than its factorization.

12693747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 31 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 12693747 is about 3562.8285111692. The cubic root of 12693747 is about 233.2723579900.

The spelling of 12693747 in words is "twelve million, six hundred ninety-three thousand, seven hundred forty-seven".