12007770 has 32 divisors (see below), whose sum is σ = 29218752. Its totient is φ = 3157632.

The previous prime is 12007759. The next prime is 12007777. The reversal of 12007770 is 7770021.

It is a self number, because there is not a number n which added to its sum of digits gives 12007770.

It is not an unprimeable number, because it can be changed into a prime (12007777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552 + ... + 4931.

It is an arithmetic number, because the mean of its divisors is an integer number (913086).

Almost surely, 2^12007770 is an apocalyptic number.

12007770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12007770 is an abundant number, since it is smaller than the sum of its proper divisors (17210982).

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

12007770 is a wasteful number, since it uses less digits than its factorization.

12007770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566.

The product of its (nonzero) digits is 686, while the sum is 24.

The square root of 12007770 is about 3465.2229365511. Note that the first 3 decimals coincide. The cubic root of 12007770 is about 228.9922513476.

Adding to 12007770 its reverse (7770021), we get a palindrome (19777791).

The spelling of 12007770 in words is "twelve million, seven thousand, seven hundred seventy".