47447902 has 16 divisors (see below), whose sum is σ = 75070800. Its totient is φ = 22429440.

The previous prime is 47447899. The next prime is 47447903. The reversal of 47447902 is 20974474.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47447903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24174 + ... + 26062.

It is an arithmetic number, because the mean of its divisors is an integer number (4691925).

Almost surely, 2^47447902 is an apocalyptic number.

47447902 is a deficient number, since it is larger than the sum of its proper divisors (27622898).

47447902 is a wasteful number, since it uses less digits than its factorization.

47447902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 47447902 is about 6888.2437529460. The cubic root of 47447902 is about 362.0253688356.

The spelling of 47447902 in words is "forty-seven million, four hundred forty-seven thousand, nine hundred two".