45208447 has 4 divisors (see below), whose sum is σ = 46666816. Its totient is φ = 43750080.

The previous prime is 45208441. The next prime is 45208459. The reversal of 45208447 is 74480254.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 45208447 - 2³ = 45208439 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 (45208441) 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, 729138 + ... + 729199.

It is an arithmetic number, because the mean of its divisors is an integer number (11666704).

Almost surely, 2^45208447 is an apocalyptic number.

45208447 is a deficient number, since it is larger than the sum of its proper divisors (1458369).

45208447 is a wasteful number, since it uses less digits than its factorization.

45208447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458368.

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 45208447 is about 6723.7227039788. The cubic root of 45208447 is about 356.2376873964.

The spelling of 45208447 in words is "forty-five million, two hundred eight thousand, four hundred forty-seven".