47890811 has 16 divisors (see below), whose sum is σ = 51609600. Its totient is φ = 44307648.

The previous prime is 47890793. The next prime is 47890837. The reversal of 47890811 is 11809874.

It is a cyclic number.

It is not a de Polignac number, because 47890811 - 2¹⁴ = 47874427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47890891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214646 + ... + 214868.

It is an arithmetic number, because the mean of its divisors is an integer number (3225600).

Almost surely, 2^47890811 is an apocalyptic number.

47890811 is a deficient number, since it is larger than the sum of its proper divisors (3718789).

47890811 is a wasteful number, since it uses less digits than its factorization.

47890811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 47890811 is about 6920.3187065337. The cubic root of 47890811 is about 363.1483404883.

The spelling of 47890811 in words is "forty-seven million, eight hundred ninety thousand, eight hundred eleven".