6447902 has 8 divisors (see below), whose sum is σ = 9683712. Its totient is φ = 3220000.

The previous prime is 6447899. The next prime is 6447919. The reversal of 6447902 is 2097446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 902 + ... + 3702.

It is an arithmetic number, because the mean of its divisors is an integer number (1210464).

Almost surely, 2^6447902 is an apocalyptic number.

6447902 is a deficient number, since it is larger than the sum of its proper divisors (3235810).

6447902 is a wasteful number, since it uses less digits than its factorization.

6447902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 6447902 is about 2539.2719429002. The cubic root of 6447902 is about 186.1256136880.

The spelling of 6447902 in words is "six million, four hundred forty-seven thousand, nine hundred two".