45724247 has 4 divisors (see below), whose sum is σ = 45738216. Its totient is φ = 45710280.

The previous prime is 45724243. The next prime is 45724249. The reversal of 45724247 is 74242754.

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 45724247 - 2² = 45724243 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 (45724243) 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, 872 + ... + 9602.

It is an arithmetic number, because the mean of its divisors is an integer number (11434554).

Almost surely, 2^45724247 is an apocalyptic number.

45724247 is a deficient number, since it is larger than the sum of its proper divisors (13969).

45724247 is an equidigital number, since it uses as much as digits as its factorization.

45724247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13968.

The product of its digits is 62720, while the sum is 35.

The square root of 45724247 is about 6761.9706447159. The cubic root of 45724247 is about 357.5873834023.

The spelling of 45724247 in words is "forty-five million, seven hundred twenty-four thousand, two hundred forty-seven".