42873073 has 2 divisors, whose sum is σ = 42873074. Its totient is φ = 42873072.

The previous prime is 42873067. The next prime is 42873091. The reversal of 42873073 is 37037824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25633969 + 17239104 = 5063^2 + 4152^2 .

It is a cyclic number.

It is not a de Polignac number, because 42873073 - 2²⁵ = 9318641 is a prime.

It is not a weakly prime, because it can be changed into another prime (42873023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21436536 + 21436537.

It is an arithmetic number, because the mean of its divisors is an integer number (21436537).

Almost surely, 2^42873073 is an apocalyptic number.

It is an amenable number.

42873073 is a deficient number, since it is larger than the sum of its proper divisors (1).

42873073 is an equidigital number, since it uses as much as digits as its factorization.

42873073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 42873073 is about 6547.7532787972. The cubic root of 42873073 is about 349.9947563840.

The spelling of 42873073 in words is "forty-two million, eight hundred seventy-three thousand, seventy-three".