47104921 has 2 divisors, whose sum is σ = 47104922. Its totient is φ = 47104920.

The previous prime is 47104901. The next prime is 47104927. The reversal of 47104921 is 12940174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35105625 + 11999296 = 5925^2 + 3464^2 .

It is a cyclic number.

It is not a de Polignac number, because 47104921 - 2⁷ = 47104793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47104921.

It is not a weakly prime, because it can be changed into another prime (47104927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23552460 + 23552461.

It is an arithmetic number, because the mean of its divisors is an integer number (23552461).

Almost surely, 2^47104921 is an apocalyptic number.

It is an amenable number.

47104921 is a deficient number, since it is larger than the sum of its proper divisors (1).

47104921 is an equidigital number, since it uses as much as digits as its factorization.

47104921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 47104921 is about 6863.3024849558. The cubic root of 47104921 is about 361.1509486061.

The spelling of 47104921 in words is "forty-seven million, one hundred four thousand, nine hundred twenty-one".