47360921 has 4 divisors (see below), whose sum is σ = 47442192. Its totient is φ = 47279652.

The previous prime is 47360917. The next prime is 47360927. The reversal of 47360921 is 12906374.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47360921 - 2² = 47360917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47360927) 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, 39755 + ... + 40928.

It is an arithmetic number, because the mean of its divisors is an integer number (11860548).

Almost surely, 2^47360921 is an apocalyptic number.

It is an amenable number.

47360921 is a deficient number, since it is larger than the sum of its proper divisors (81271).

47360921 is an equidigital number, since it uses as much as digits as its factorization.

47360921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81270.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 47360921 is about 6881.9271283558. The cubic root of 47360921 is about 361.8040131390.

The spelling of 47360921 in words is "forty-seven million, three hundred sixty thousand, nine hundred twenty-one".