42893121 has 12 divisors (see below), whose sum is σ = 58006608. Its totient is φ = 28193184.

The previous prime is 42893099. The next prime is 42893131. The reversal of 42893121 is 12139824.

It is not a de Polignac number, because 42893121 - 2⁹ = 42892609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42893131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14646 + ... + 17328.

It is an arithmetic number, because the mean of its divisors is an integer number (4833884).

Almost surely, 2^42893121 is an apocalyptic number.

It is an amenable number.

42893121 is a deficient number, since it is larger than the sum of its proper divisors (15113487).

42893121 is an equidigital number, since it uses as much as digits as its factorization.

42893121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832 (or 2759 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 42893121 is about 6549.2840066682. The cubic root of 42893121 is about 350.0493018984.

The spelling of 42893121 in words is "forty-two million, eight hundred ninety-three thousand, one hundred twenty-one".