47231266 has 4 divisors (see below), whose sum is σ = 70846902. Its totient is φ = 23615632.

The previous prime is 47231231. The next prime is 47231267. The reversal of 47231266 is 66213274.

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

It can be written as a sum of positive squares in only one way, i.e., 47128225 + 103041 = 6865^2 + 321^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (47231267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11807815 + ... + 11807818.

Almost surely, 2^47231266 is an apocalyptic number.

47231266 is a deficient number, since it is larger than the sum of its proper divisors (23615636).

47231266 is a wasteful number, since it uses less digits than its factorization.

47231266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23615635.

The product of its digits is 12096, while the sum is 31.

The square root of 47231266 is about 6872.5007093488. The cubic root of 47231266 is about 361.4735538339.

The spelling of 47231266 in words is "forty-seven million, two hundred thirty-one thousand, two hundred sixty-six".