12757620 has 24 divisors (see below), whose sum is σ = 35721504. Its totient is φ = 3402016.

The previous prime is 12757609. The next prime is 12757621. The reversal of 12757620 is 2675721.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12757621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106254 + ... + 106373.

It is an arithmetic number, because the mean of its divisors is an integer number (1488396).

Almost surely, 2^12757620 is an apocalyptic number.

12757620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12757620 is an abundant number, since it is smaller than the sum of its proper divisors (22963884).

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

12757620 is a wasteful number, since it uses less digits than its factorization.

12757620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212639 (or 212637 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 12757620 is about 3571.7810683187. The cubic root of 12757620 is about 233.6629672080.

The spelling of 12757620 in words is "twelve million, seven hundred fifty-seven thousand, six hundred twenty".