45784591 has 4 divisors (see below), whose sum is σ = 47363400. Its totient is φ = 44205784.

The previous prime is 45784511. The next prime is 45784597. The reversal of 45784591 is 19548754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19548754 = 2 ⋅9774377.

It is a cyclic number.

It is not a de Polignac number, because 45784591 - 2⁷ = 45784463 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 (45784597) 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, 789361 + ... + 789418.

It is an arithmetic number, because the mean of its divisors is an integer number (11840850).

Almost surely, 2^45784591 is an apocalyptic number.

45784591 is a deficient number, since it is larger than the sum of its proper divisors (1578809).

45784591 is a wasteful number, since it uses less digits than its factorization.

45784591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578808.

The product of its digits is 201600, while the sum is 43.

The square root of 45784591 is about 6766.4311863788. The cubic root of 45784591 is about 357.7446214025.

The spelling of 45784591 in words is "forty-five million, seven hundred eighty-four thousand, five hundred ninety-one".