45423487 has 4 divisors (see below), whose sum is σ = 45437080. Its totient is φ = 45409896.

The previous prime is 45423431. The next prime is 45423527. The reversal of 45423487 is 78432454.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 45423487 - 2⁷ = 45423359 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 (45423407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089 + ... + 9757.

It is an arithmetic number, because the mean of its divisors is an integer number (11359270).

Almost surely, 2^45423487 is an apocalyptic number.

45423487 is a deficient number, since it is larger than the sum of its proper divisors (13593).

45423487 is an equidigital number, since it uses as much as digits as its factorization.

45423487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13592.

The product of its digits is 107520, while the sum is 37.

The square root of 45423487 is about 6739.6948743990. The cubic root of 45423487 is about 356.8016248619.

The spelling of 45423487 in words is "forty-five million, four hundred twenty-three thousand, four hundred eighty-seven".