47903311 has 2 divisors, whose sum is σ = 47903312. Its totient is φ = 47903310.

The previous prime is 47903291. The next prime is 47903321. The reversal of 47903311 is 11330974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47903311 - 2¹¹ = 47901263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47903311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47903321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23951655 + 23951656.

It is an arithmetic number, because the mean of its divisors is an integer number (23951656).

Almost surely, 2^47903311 is an apocalyptic number.

47903311 is a deficient number, since it is larger than the sum of its proper divisors (1).

47903311 is an equidigital number, since it uses as much as digits as its factorization.

47903311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 47903311 is about 6921.2217852053. The cubic root of 47903311 is about 363.1799329050.

The spelling of 47903311 in words is "forty-seven million, nine hundred three thousand, three hundred eleven".