42993193 has 2 divisors, whose sum is σ = 42993194. Its totient is φ = 42993192.

The previous prime is 42993179. The next prime is 42993239. The reversal of 42993193 is 39139924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31214569 + 11778624 = 5587^2 + 3432^2 .

It is a cyclic number.

It is not a de Polignac number, because 42993193 - 2⁵ = 42993161 is a prime.

It is not a weakly prime, because it can be changed into another prime (42993103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21496596 + 21496597.

It is an arithmetic number, because the mean of its divisors is an integer number (21496597).

Almost surely, 2^42993193 is an apocalyptic number.

It is an amenable number.

42993193 is a deficient number, since it is larger than the sum of its proper divisors (1).

42993193 is an equidigital number, since it uses as much as digits as its factorization.

42993193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 40.

The square root of 42993193 is about 6556.9194748754. The cubic root of 42993193 is about 350.3213185278.

The spelling of 42993193 in words is "forty-two million, nine hundred ninety-three thousand, one hundred ninety-three".