47398903 has 4 divisors (see below), whose sum is σ = 47560968. Its totient is φ = 47236840.

The previous prime is 47398859. The next prime is 47398909. The reversal of 47398903 is 30989374.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47398903 - 2²⁵ = 13844471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47398903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47398909) 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 3 ways as a sum of consecutive naturals, for example, 80593 + ... + 81178.

It is an arithmetic number, because the mean of its divisors is an integer number (11890242).

Almost surely, 2^47398903 is an apocalyptic number.

47398903 is a deficient number, since it is larger than the sum of its proper divisors (162065).

47398903 is a wasteful number, since it uses less digits than its factorization.

47398903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162064.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 47398903 is about 6884.6861221119. The cubic root of 47398903 is about 361.9007058539.

The spelling of 47398903 in words is "forty-seven million, three hundred ninety-eight thousand, nine hundred three".