47133787 has 4 divisors (see below), whose sum is σ = 48759120. Its totient is φ = 45508456.

The previous prime is 47133781. The next prime is 47133799. The reversal of 47133787 is 78733174.

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

It is a cyclic number.

It is not a de Polignac number, because 47133787 - 2⁷ = 47133659 is a prime.

It is a super-2 number, since 2×47133787² = 4443187753922738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47133781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812623 + ... + 812680.

It is an arithmetic number, because the mean of its divisors is an integer number (12189780).

Almost surely, 2^47133787 is an apocalyptic number.

47133787 is a deficient number, since it is larger than the sum of its proper divisors (1625333).

47133787 is a wasteful number, since it uses less digits than its factorization.

47133787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625332.

The product of its digits is 98784, while the sum is 40.

The square root of 47133787 is about 6865.4050863733. The cubic root of 47133787 is about 361.2247049094.

The spelling of 47133787 in words is "forty-seven million, one hundred thirty-three thousand, seven hundred eighty-seven".