45784391 has 2 divisors, whose sum is σ = 45784392. Its totient is φ = 45784390.

The previous prime is 45784381. The next prime is 45784397. The reversal of 45784391 is 19348754.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45784391 - 2⁶ = 45784327 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45784397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22892195 + 22892196.

It is an arithmetic number, because the mean of its divisors is an integer number (22892196).

Almost surely, 2^45784391 is an apocalyptic number.

45784391 is a deficient number, since it is larger than the sum of its proper divisors (1).

45784391 is an equidigital number, since it uses as much as digits as its factorization.

45784391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 45784391 is about 6766.4164075233. The cubic root of 45784391 is about 357.7441004919.

It can be divided in two parts, 457 and 84391, that added together give a palindrome (84848).

The spelling of 45784391 in words is "forty-five million, seven hundred eighty-four thousand, three hundred ninety-one".