47445499 has 4 divisors (see below), whose sum is σ = 48249720. Its totient is φ = 46641280.

The previous prime is 47445493. The next prime is 47445533. The reversal of 47445499 is 99454474.

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 47445499 - 2¹⁵ = 47412731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47445493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402022 + ... + 402139.

It is an arithmetic number, because the mean of its divisors is an integer number (12062430).

Almost surely, 2^47445499 is an apocalyptic number.

47445499 is a deficient number, since it is larger than the sum of its proper divisors (804221).

47445499 is an equidigital number, since it uses as much as digits as its factorization.

47445499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804220.

The product of its digits is 725760, while the sum is 46.

The square root of 47445499 is about 6888.0693231122. The cubic root of 47445499 is about 362.0192571382.

The spelling of 47445499 in words is "forty-seven million, four hundred forty-five thousand, four hundred ninety-nine".