47891236 has 12 divisors (see below), whose sum is σ = 83859328. Its totient is φ = 23931432.

The previous prime is 47891231. The next prime is 47891251. The reversal of 47891236 is 63219874.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47891231) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8905 + ... + 13231.

Almost surely, 2^47891236 is an apocalyptic number.

It is an amenable number.

47891236 is a deficient number, since it is larger than the sum of its proper divisors (35968092).

47891236 is a wasteful number, since it uses less digits than its factorization.

47891236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7098 (or 7096 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 47891236 is about 6920.3494131438. The cubic root of 47891236 is about 363.1494147207.

The spelling of 47891236 in words is "forty-seven million, eight hundred ninety-one thousand, two hundred thirty-six".