42769073 has 2 divisors, whose sum is σ = 42769074. Its totient is φ = 42769072.

The previous prime is 42769063. The next prime is 42769087. The reversal of 42769073 is 37096724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22591009 + 20178064 = 4753^2 + 4492^2 .

It is a cyclic number.

It is not a de Polignac number, because 42769073 - 2⁶ = 42769009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42769063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21384536 + 21384537.

It is an arithmetic number, because the mean of its divisors is an integer number (21384537).

Almost surely, 2^42769073 is an apocalyptic number.

It is an amenable number.

42769073 is a deficient number, since it is larger than the sum of its proper divisors (1).

42769073 is an equidigital number, since it uses as much as digits as its factorization.

42769073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 42769073 is about 6539.8068014277. The cubic root of 42769073 is about 349.7115255663.

The spelling of 42769073 in words is "forty-two million, seven hundred sixty-nine thousand, seventy-three".