47491266 has 16 divisors (see below), whose sum is σ = 95183424. Its totient is φ = 15796944.

The previous prime is 47491259. The next prime is 47491267. The reversal of 47491266 is 66219474.

Added to its reverse (66219474) it gives a triangular number (113710740 = T₁₅₀₈₀).

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47491267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5205 + ... + 11048.

It is an arithmetic number, because the mean of its divisors is an integer number (5948964).

Almost surely, 2^47491266 is an apocalyptic number.

47491266 is an abundant number, since it is smaller than the sum of its proper divisors (47692158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47491266 is a wasteful number, since it uses less digits than its factorization.

47491266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16745.

The product of its digits is 72576, while the sum is 39.

The square root of 47491266 is about 6891.3907159586. The cubic root of 47491266 is about 362.1356237138.

Adding to 47491266 its reverse (66219474), we get a triangular number (113710740 = T₁₅₀₈₀).

The spelling of 47491266 in words is "forty-seven million, four hundred ninety-one thousand, two hundred sixty-six".