47651801 has 2 divisors, whose sum is σ = 47651802. Its totient is φ = 47651800.

The previous prime is 47651777. The next prime is 47651831. The reversal of 47651801 is 10815674.

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., 43033600 + 4618201 = 6560^2 + 2149^2 .

It is a cyclic number.

It is not a de Polignac number, because 47651801 - 2¹⁰ = 47650777 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47651831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23825900 + 23825901.

It is an arithmetic number, because the mean of its divisors is an integer number (23825901).

Almost surely, 2^47651801 is an apocalyptic number.

It is an amenable number.

47651801 is a deficient number, since it is larger than the sum of its proper divisors (1).

47651801 is an equidigital number, since it uses as much as digits as its factorization.

47651801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 47651801 is about 6903.0283933937. The cubic root of 47651801 is about 362.5432078501.

The spelling of 47651801 in words is "forty-seven million, six hundred fifty-one thousand, eight hundred one".