913780645 has 8 divisors (see below), whose sum is σ = 1131909120. Its totient is φ = 707442960.

The previous prime is 913780631. The next prime is 913780669. The reversal of 913780645 is 546087319.

913780645 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 913780645 - 2¹⁷ = 913649573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2947525 + ... + 2947834.

It is an arithmetic number, because the mean of its divisors is an integer number (141488640).

Almost surely, 2^913780645 is an apocalyptic number.

It is an amenable number.

913780645 is a deficient number, since it is larger than the sum of its proper divisors (218128475).

913780645 is a wasteful number, since it uses less digits than its factorization.

913780645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895395.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 913780645 is about 30228.8048887150. The cubic root of 913780645 is about 970.3922475688.

The spelling of 913780645 in words is "nine hundred thirteen million, seven hundred eighty thousand, six hundred forty-five".