42487277 has 4 divisors (see below), whose sum is σ = 48556896. Its totient is φ = 36417660.

The previous prime is 42487271. The next prime is 42487283. The reversal of 42487277 is 77278424.

42487277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (42487271) and next prime (42487283).

It is a cyclic number.

It is not a de Polignac number, because 42487277 - 2¹⁴ = 42470893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42487271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3034799 + ... + 3034812.

It is an arithmetic number, because the mean of its divisors is an integer number (12139224).

Almost surely, 2^42487277 is an apocalyptic number.

It is an amenable number.

42487277 is a deficient number, since it is larger than the sum of its proper divisors (6069619).

42487277 is an equidigital number, since it uses as much as digits as its factorization.

42487277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6069618.

The product of its digits is 175616, while the sum is 41.

The square root of 42487277 is about 6518.2265226057. The cubic root of 42487277 is about 348.9417751106.

The spelling of 42487277 in words is "forty-two million, four hundred eighty-seven thousand, two hundred seventy-seven".