47091747 has 8 divisors (see below), whose sum is σ = 66093760. Its totient is φ = 29742120.

The previous prime is 47091731. The next prime is 47091757. The reversal of 47091747 is 74719074.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47091747 - 2⁴ = 47091731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47091757) 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, 413029 + ... + 413142.

It is an arithmetic number, because the mean of its divisors is an integer number (8261720).

Almost surely, 2^47091747 is an apocalyptic number.

47091747 is a deficient number, since it is larger than the sum of its proper divisors (19002013).

47091747 is a wasteful number, since it uses less digits than its factorization.

47091747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826193.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 47091747 is about 6862.3426757923. The cubic root of 47091747 is about 361.1172773455.

The spelling of 47091747 in words is "forty-seven million, ninety-one thousand, seven hundred forty-seven".