42576077 has 2 divisors, whose sum is σ = 42576078. Its totient is φ = 42576076.

The previous prime is 42576071. The next prime is 42576101. The reversal of 42576077 is 77067524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22335076 + 20241001 = 4726^2 + 4499^2 .

It is a cyclic number.

It is not a de Polignac number, because 42576077 - 2⁸ = 42575821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42576077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42576071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21288038 + 21288039.

It is an arithmetic number, because the mean of its divisors is an integer number (21288039).

Almost surely, 2^42576077 is an apocalyptic number.

It is an amenable number.

42576077 is a deficient number, since it is larger than the sum of its proper divisors (1).

42576077 is an equidigital number, since it uses as much as digits as its factorization.

42576077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 42576077 is about 6525.0346359234. The cubic root of 42576077 is about 349.1847064030.

The spelling of 42576077 in words is "forty-two million, five hundred seventy-six thousand, seventy-seven".