12765830 has 64 divisors (see below), whose sum is σ = 29237760. Its totient is φ = 3897600.

The previous prime is 12765821. The next prime is 12765839. The reversal of 12765830 is 3856721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12765821) and next prime (12765839).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12765839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45290 + ... + 45570.

It is an arithmetic number, because the mean of its divisors is an integer number (456840).

Almost surely, 2^12765830 is an apocalyptic number.

12765830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12765830 is an abundant number, since it is smaller than the sum of its proper divisors (16471930).

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

12765830 is a wasteful number, since it uses less digits than its factorization.

12765830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 12765830 is about 3572.9301700425. The cubic root of 12765830 is about 233.7130800450.

The spelling of 12765830 in words is "twelve million, seven hundred sixty-five thousand, eight hundred thirty".