58217947 has 2 divisors, whose sum is σ = 58217948. Its totient is φ = 58217946.

The previous prime is 58217933. The next prime is 58217989. The reversal of 58217947 is 74971285.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58217947 is a prime.

It is not a weakly prime, because it can be changed into another prime (58217917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29108973 + 29108974.

It is an arithmetic number, because the mean of its divisors is an integer number (29108974).

Almost surely, 2^58217947 is an apocalyptic number.

58217947 is a deficient number, since it is larger than the sum of its proper divisors (1).

58217947 is an equidigital number, since it uses as much as digits as its factorization.

58217947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 43.

The square root of 58217947 is about 7630.0686104386. The cubic root of 58217947 is about 387.5719120093.

The spelling of 58217947 in words is "fifty-eight million, two hundred seventeen thousand, nine hundred forty-seven".