12447902 has 16 divisors (see below), whose sum is σ = 19452960. Its totient is φ = 5966688.

The previous prime is 12447901. The next prime is 12447937. The reversal of 12447902 is 20974421.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12447901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8423 + ... + 9789.

It is an arithmetic number, because the mean of its divisors is an integer number (1215810).

Almost surely, 2^12447902 is an apocalyptic number.

12447902 is a deficient number, since it is larger than the sum of its proper divisors (7005058).

12447902 is a wasteful number, since it uses less digits than its factorization.

12447902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12447902 is about 3528.1584431542. The cubic root of 12447902 is about 231.7565693775.

The spelling of 12447902 in words is "twelve million, four hundred forty-seven thousand, nine hundred two".