42495877 has 4 divisors (see below), whose sum is σ = 43297740. Its totient is φ = 41694016.

The previous prime is 42495857. The next prime is 42495899. The reversal of 42495877 is 77859424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38551681 + 3944196 = 6209^2 + 1986^2 .

It is a cyclic number.

It is not a de Polignac number, because 42495877 - 2⁷ = 42495749 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 (42495857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400852 + ... + 400957.

It is an arithmetic number, because the mean of its divisors is an integer number (10824435).

Almost surely, 2^42495877 is an apocalyptic number.

It is an amenable number.

42495877 is a deficient number, since it is larger than the sum of its proper divisors (801863).

42495877 is an equidigital number, since it uses as much as digits as its factorization.

42495877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801862.

The product of its digits is 564480, while the sum is 46.

The square root of 42495877 is about 6518.8861778681. The cubic root of 42495877 is about 348.9653170352.

The spelling of 42495877 in words is "forty-two million, four hundred ninety-five thousand, eight hundred seventy-seven".