42793523 has 2 divisors, whose sum is σ = 42793524. Its totient is φ = 42793522.

The previous prime is 42793493. The next prime is 42793537. The reversal of 42793523 is 32539724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42793523 - 2¹⁰ = 42792499 is a prime.

It is a super-2 number, since 2×42793523² = 3662571221503058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42790523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21396761 + 21396762.

It is an arithmetic number, because the mean of its divisors is an integer number (21396762).

Almost surely, 2^42793523 is an apocalyptic number.

42793523 is a deficient number, since it is larger than the sum of its proper divisors (1).

42793523 is an equidigital number, since it uses as much as digits as its factorization.

42793523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 35.

The square root of 42793523 is about 6541.6758556199. The cubic root of 42793523 is about 349.7781532902.

The spelling of 42793523 in words is "forty-two million, seven hundred ninety-three thousand, five hundred twenty-three".