147693893 has 2 divisors, whose sum is σ = 147693894. Its totient is φ = 147693892.

The previous prime is 147693857. The next prime is 147693901. The reversal of 147693893 is 398396741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138250564 + 9443329 = 11758^2 + 3073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147693893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147693803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73846946 + 73846947.

It is an arithmetic number, because the mean of its divisors is an integer number (73846947).

Almost surely, 2^147693893 is an apocalyptic number.

It is an amenable number.

147693893 is a deficient number, since it is larger than the sum of its proper divisors (1).

147693893 is an equidigital number, since it uses as much as digits as its factorization.

147693893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 50.

The square root of 147693893 is about 12152.9376284090. The cubic root of 147693893 is about 528.5923164691.

The spelling of 147693893 in words is "one hundred forty-seven million, six hundred ninety-three thousand, eight hundred ninety-three".