47017493 has 2 divisors, whose sum is σ = 47017494. Its totient is φ = 47017492.

The previous prime is 47017489. The next prime is 47017499. The reversal of 47017493 is 39471074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43784689 + 3232804 = 6617^2 + 1798^2 .

It is a cyclic number.

It is not a de Polignac number, because 47017493 - 2² = 47017489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47017499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23508746 + 23508747.

It is an arithmetic number, because the mean of its divisors is an integer number (23508747).

Almost surely, 2^47017493 is an apocalyptic number.

It is an amenable number.

47017493 is a deficient number, since it is larger than the sum of its proper divisors (1).

47017493 is an equidigital number, since it uses as much as digits as its factorization.

47017493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 47017493 is about 6856.9302898600. The cubic root of 47017493 is about 360.9273749388.

The spelling of 47017493 in words is "forty-seven million, seventeen thousand, four hundred ninety-three".