93140947 has 2 divisors, whose sum is σ = 93140948. Its totient is φ = 93140946.

The previous prime is 93140899. The next prime is 93140963. The reversal of 93140947 is 74904139.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 93140947 - 2⁷ = 93140819 is a prime.

It is not a weakly prime, because it can be changed into another prime (93140987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46570473 + 46570474.

It is an arithmetic number, because the mean of its divisors is an integer number (46570474).

Almost surely, 2^93140947 is an apocalyptic number.

93140947 is a deficient number, since it is larger than the sum of its proper divisors (1).

93140947 is an equidigital number, since it uses as much as digits as its factorization.

93140947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 93140947 is about 9650.9557557788. The cubic root of 93140947 is about 453.2942565918.

The spelling of 93140947 in words is "ninety-three million, one hundred forty thousand, nine hundred forty-seven".