45392647 has 4 divisors (see below), whose sum is σ = 46358496. Its totient is φ = 44426800.

The previous prime is 45392603. The next prime is 45392651. The reversal of 45392647 is 74629354.

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 45392647 - 2⁷ = 45392519 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45392657) 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, 482854 + ... + 482947.

It is an arithmetic number, because the mean of its divisors is an integer number (11589624).

Almost surely, 2^45392647 is an apocalyptic number.

45392647 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

45392647 is a deficient number, since it is larger than the sum of its proper divisors (965849).

45392647 is an equidigital number, since it uses as much as digits as its factorization.

45392647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965848.

The product of its digits is 181440, while the sum is 40.

The square root of 45392647 is about 6737.4065485170. The cubic root of 45392647 is about 356.7208571498.

The spelling of 45392647 in words is "forty-five million, three hundred ninety-two thousand, six hundred forty-seven".