42477577 has 8 divisors (see below), whose sum is σ = 45073800. Its totient is φ = 39892224.

The previous prime is 42477571. The next prime is 42477587. The reversal of 42477577 is 77577424.

It can be written as a sum of positive squares in 4 ways, for example, as 32307856 + 10169721 = 5684^2 + 3189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42477577 - 2²³ = 34088969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42477571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6199 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (5634225).

Almost surely, 2^42477577 is an apocalyptic number.

It is an amenable number.

42477577 is a deficient number, since it is larger than the sum of its proper divisors (2596223).

42477577 is a wasteful number, since it uses less digits than its factorization.

42477577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435.

The product of its digits is 384160, while the sum is 43.

The square root of 42477577 is about 6517.4824127112. The cubic root of 42477577 is about 348.9152181970.

The spelling of 42477577 in words is "forty-two million, four hundred seventy-seven thousand, five hundred seventy-seven".