47498981 has 2 divisors, whose sum is σ = 47498982. Its totient is φ = 47498980.

The previous prime is 47498977. The next prime is 47499017. The reversal of 47498981 is 18989474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43230625 + 4268356 = 6575^2 + 2066^2 .

It is a cyclic number.

It is not a de Polignac number, because 47498981 - 2² = 47498977 is a prime.

It is a super-3 number, since 3×47498981³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47498921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23749490 + 23749491.

It is an arithmetic number, because the mean of its divisors is an integer number (23749491).

Almost surely, 2^47498981 is an apocalyptic number.

It is an amenable number.

47498981 is a deficient number, since it is larger than the sum of its proper divisors (1).

47498981 is an equidigital number, since it uses as much as digits as its factorization.

47498981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 50.

The square root of 47498981 is about 6891.9504496187. The cubic root of 47498981 is about 362.1552324075.

The spelling of 47498981 in words is "forty-seven million, four hundred ninety-eight thousand, nine hundred eighty-one".