12791402 has 8 divisors (see below), whose sum is σ = 20663076. Its totient is φ = 5903712.

The previous prime is 12791399. The next prime is 12791413. The reversal of 12791402 is 20419721.

12791402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12453841 + 337561 = 3529^2 + 581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 491977 = 12791402 / (1 + 2 + 7 + 9 + 1 + 4 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245963 + ... + 246014.

Almost surely, 2^12791402 is an apocalyptic number.

12791402 is a deficient number, since it is larger than the sum of its proper divisors (7871674).

12791402 is a wasteful number, since it uses less digits than its factorization.

12791402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491992.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 12791402 is about 3576.5069551170. The cubic root of 12791402 is about 233.8690308575.

The spelling of 12791402 in words is "twelve million, seven hundred ninety-one thousand, four hundred two".