12770390 has 8 divisors (see below), whose sum is σ = 22986720. Its totient is φ = 5108152.

The previous prime is 12770389. The next prime is 12770399. The reversal of 12770390 is 9307721.

It is a happy number.

12770390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12770399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638510 + ... + 638529.

It is an arithmetic number, because the mean of its divisors is an integer number (2873340).

Almost surely, 2^12770390 is an apocalyptic number.

12770390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12770390 is a deficient number, since it is larger than the sum of its proper divisors (10216330).

12770390 is a wasteful number, since it uses less digits than its factorization.

12770390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277046.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 12770390 is about 3573.5682447660. The cubic root of 12770390 is about 233.7409044475.

The spelling of 12770390 in words is "twelve million, seven hundred seventy thousand, three hundred ninety".