47217497 has 2 divisors, whose sum is σ = 47217498. Its totient is φ = 47217496.

The previous prime is 47217493. The next prime is 47217553. The reversal of 47217497 is 79471274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29333056 + 17884441 = 5416^2 + 4229^2 .

It is a cyclic number.

It is not a de Polignac number, because 47217497 - 2² = 47217493 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47217491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23608748 + 23608749.

It is an arithmetic number, because the mean of its divisors is an integer number (23608749).

Almost surely, 2^47217497 is an apocalyptic number.

It is an amenable number.

47217497 is a deficient number, since it is larger than the sum of its proper divisors (1).

47217497 is an equidigital number, since it uses as much as digits as its factorization.

47217497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 41.

The square root of 47217497 is about 6871.4988903441. The cubic root of 47217497 is about 361.4384244693.

The spelling of 47217497 in words is "forty-seven million, two hundred seventeen thousand, four hundred ninety-seven".