45287787 has 4 divisors (see below), whose sum is σ = 60383720. Its totient is φ = 30191856.

The previous prime is 45287747. The next prime is 45287789. The reversal of 45287787 is 78778254.

It is a happy number.

45287787 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.

It is not a de Polignac number, because 45287787 - 2¹⁰ = 45286763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45287789) 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, 7547962 + ... + 7547967.

It is an arithmetic number, because the mean of its divisors is an integer number (15095930).

Almost surely, 2^45287787 is an apocalyptic number.

45287787 is a deficient number, since it is larger than the sum of its proper divisors (15095933).

45287787 is a wasteful number, since it uses less digits than its factorization.

45287787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15095932.

The product of its digits is 878080, while the sum is 48.

The square root of 45287787 is about 6729.6201230084. The cubic root of 45287787 is about 356.4459624857.

The spelling of 45287787 in words is "forty-five million, two hundred eighty-seven thousand, seven hundred eighty-seven".