561377386 has 8 divisors (see below), whose sum is σ = 842172804. Its totient is φ = 280653120.

The previous prime is 561377351. The next prime is 561377393. The reversal of 561377386 is 683773165.

561377386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 560979225 + 398161 = 23685^2 + 631^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11746 + ... + 35506.

Almost surely, 2^561377386 is an apocalyptic number.

561377386 is a deficient number, since it is larger than the sum of its proper divisors (280795418).

561377386 is a wasteful number, since it uses less digits than its factorization.

561377386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35576.

The product of its digits is 635040, while the sum is 46.

The square root of 561377386 is about 23693.4038500170. The cubic root of 561377386 is about 824.9322924538.

The spelling of 561377386 in words is "five hundred sixty-one million, three hundred seventy-seven thousand, three hundred eighty-six".