12993078 has 16 divisors (see below), whose sum is σ = 29698560. Its totient is φ = 3712296.

The previous prime is 12993077. The next prime is 12993107. The reversal of 12993078 is 87039921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12993077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154638 + ... + 154721.

It is an arithmetic number, because the mean of its divisors is an integer number (1856160).

Almost surely, 2^12993078 is an apocalyptic number.

12993078 is an abundant number, since it is smaller than the sum of its proper divisors (16705482).

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

12993078 is a wasteful number, since it uses less digits than its factorization.

12993078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309371.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 12993078 is about 3604.5912389618. The cubic root of 12993078 is about 235.0917281866.

The spelling of 12993078 in words is "twelve million, nine hundred ninety-three thousand, seventy-eight".