47291902 has 8 divisors (see below), whose sum is σ = 81071856. Its totient is φ = 20267952.

The previous prime is 47291899. The next prime is 47291929. The reversal of 47291902 is 20919274.

It is a happy number.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1688983 + ... + 1689010.

It is an arithmetic number, because the mean of its divisors is an integer number (10133982).

Almost surely, 2^47291902 is an apocalyptic number.

47291902 is a deficient number, since it is larger than the sum of its proper divisors (33779954).

47291902 is a wasteful number, since it uses less digits than its factorization.

47291902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378002.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 47291902 is about 6876.9107890098. The cubic root of 47291902 is about 361.6281755446.

The spelling of 47291902 in words is "forty-seven million, two hundred ninety-one thousand, nine hundred two".