47564091 has 12 divisors (see below), whose sum is σ = 71248632. Its totient is φ = 31709232.

The previous prime is 47564057. The next prime is 47564117. The reversal of 47564091 is 19046574.

47564091 is a `hidden beast` number, since 4 + 7 + 5 + 640 + 9 + 1 = 666.

It is not a de Polignac number, because 47564091 - 2⁷ = 47563963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47564021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97626 + ... + 98111.

It is an arithmetic number, because the mean of its divisors is an integer number (5937386).

Almost surely, 2^47564091 is an apocalyptic number.

47564091 is a deficient number, since it is larger than the sum of its proper divisors (23684541).

47564091 is an equidigital number, since it uses as much as digits as its factorization.

47564091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195752 (or 195740 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 47564091 is about 6896.6724585121. The cubic root of 47564091 is about 362.3206335781.

The spelling of 47564091 in words is "forty-seven million, five hundred sixty-four thousand, ninety-one".