47405903 has 4 divisors (see below), whose sum is σ = 48300408. Its totient is φ = 46511400.

The previous prime is 47405879. The next prime is 47405929. The reversal of 47405903 is 30950474.

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 47405903 - 2¹⁴ = 47389519 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 47405903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47405933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447173 + ... + 447278.

It is an arithmetic number, because the mean of its divisors is an integer number (12075102).

Almost surely, 2^47405903 is an apocalyptic number.

47405903 is a deficient number, since it is larger than the sum of its proper divisors (894505).

47405903 is an equidigital number, since it uses as much as digits as its factorization.

47405903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894504.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 47405903 is about 6885.1944780086. The cubic root of 47405903 is about 361.9185204732.

The spelling of 47405903 in words is "forty-seven million, four hundred five thousand, nine hundred three".