47331457 has 2 divisors, whose sum is σ = 47331458. Its totient is φ = 47331456.

The previous prime is 47331443. The next prime is 47331461. The reversal of 47331457 is 75413374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47320641 + 10816 = 6879^2 + 104^2 .

It is a cyclic number.

It is not a de Polignac number, because 47331457 - 2¹⁹ = 46807169 is a prime.

It is not a weakly prime, because it can be changed into another prime (47331407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23665728 + 23665729.

It is an arithmetic number, because the mean of its divisors is an integer number (23665729).

Almost surely, 2^47331457 is an apocalyptic number.

It is an amenable number.

47331457 is a deficient number, since it is larger than the sum of its proper divisors (1).

47331457 is an equidigital number, since it uses as much as digits as its factorization.

47331457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 34.

The square root of 47331457 is about 6879.7861158615. The cubic root of 47331457 is about 361.7289695192.

The spelling of 47331457 in words is "forty-seven million, three hundred thirty-one thousand, four hundred fifty-seven".