12420675 has 24 divisors (see below), whose sum is σ = 22818480. Its totient is φ = 6624000.

The previous prime is 12420673. The next prime is 12420689. The reversal of 12420675 is 57602421.

12420675 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12420675 - 2¹ = 12420673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12420673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8526 + ... + 9875.

It is an arithmetic number, because the mean of its divisors is an integer number (950770).

Almost surely, 2^12420675 is an apocalyptic number.

12420675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12420675 is a deficient number, since it is larger than the sum of its proper divisors (10397805).

12420675 is a wasteful number, since it uses less digits than its factorization.

12420675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18420 (or 18409 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 12420675 is about 3524.2978023998. The cubic root of 12420675 is about 231.5874741541.

The spelling of 12420675 in words is "twelve million, four hundred twenty thousand, six hundred seventy-five".