47333681 has 2 divisors, whose sum is σ = 47333682. Its totient is φ = 47333680.

The previous prime is 47333677. The next prime is 47333687. The reversal of 47333681 is 18633374.

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., 46022656 + 1311025 = 6784^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 47333681 - 2² = 47333677 is a prime.

It is a super-2 number, since 2×47333681² = 4480954714019522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47333687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23666840 + 23666841.

It is an arithmetic number, because the mean of its divisors is an integer number (23666841).

Almost surely, 2^47333681 is an apocalyptic number.

It is an amenable number.

47333681 is a deficient number, since it is larger than the sum of its proper divisors (1).

47333681 is an equidigital number, since it uses as much as digits as its factorization.

47333681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 47333681 is about 6879.9477468946. The cubic root of 47333681 is about 361.7346350440.

The spelling of 47333681 in words is "forty-seven million, three hundred thirty-three thousand, six hundred eighty-one".