47251646 has 16 divisors (see below), whose sum is σ = 76449744. Its totient is φ = 21774144.

The previous prime is 47251621. The next prime is 47251649. The reversal of 47251646 is 64615274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47251649) 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, 23825 + ... + 25731.

It is an arithmetic number, because the mean of its divisors is an integer number (4778109).

Almost surely, 2^47251646 is an apocalyptic number.

47251646 is a deficient number, since it is larger than the sum of its proper divisors (29198098).

47251646 is a wasteful number, since it uses less digits than its factorization.

47251646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875.

The product of its digits is 40320, while the sum is 35.

The square root of 47251646 is about 6873.9832702735. The cubic root of 47251646 is about 361.5255375608.

The spelling of 47251646 in words is "forty-seven million, two hundred fifty-one thousand, six hundred forty-six".