47445697 has 4 divisors (see below), whose sum is σ = 51095380. Its totient is φ = 43796016.

The previous prime is 47445689. The next prime is 47445719. The reversal of 47445697 is 79654474.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3568321 + 43877376 = 1889^2 + 6624^2 .

It is a cyclic number.

It is not a de Polignac number, because 47445697 - 2³ = 47445689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47445667) 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, 1824822 + ... + 1824847.

It is an arithmetic number, because the mean of its divisors is an integer number (12773845).

Almost surely, 2^47445697 is an apocalyptic number.

It is an amenable number.

47445697 is a deficient number, since it is larger than the sum of its proper divisors (3649683).

47445697 is a wasteful number, since it uses less digits than its factorization.

47445697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3649682.

The product of its digits is 846720, while the sum is 46.

The square root of 47445697 is about 6888.0836957749. The cubic root of 47445697 is about 362.0197607316.

The spelling of 47445697 in words is "forty-seven million, four hundred forty-five thousand, six hundred ninety-seven".