47641421 has 2 divisors, whose sum is σ = 47641422. Its totient is φ = 47641420.

The previous prime is 47641411. The next prime is 47641439. The reversal of 47641421 is 12414674.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31753225 + 15888196 = 5635^2 + 3986^2 .

It is a cyclic number.

It is not a de Polignac number, because 47641421 - 2⁶ = 47641357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47641411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23820710 + 23820711.

It is an arithmetic number, because the mean of its divisors is an integer number (23820711).

Almost surely, 2^47641421 is an apocalyptic number.

It is an amenable number.

47641421 is a deficient number, since it is larger than the sum of its proper divisors (1).

47641421 is an equidigital number, since it uses as much as digits as its factorization.

47641421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 29.

The square root of 47641421 is about 6902.2765085151. The cubic root of 47641421 is about 362.5168816553.

The spelling of 47641421 in words is "forty-seven million, six hundred forty-one thousand, four hundred twenty-one".