941785561 has 4 divisors (see below), whose sum is σ = 941922832. Its totient is φ = 941648292.

The previous prime is 941785541. The next prime is 941785573. The reversal of 941785561 is 165587149.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 941785561 - 2²⁷ = 807567833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (941785541) 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, 57771 + ... + 72256.

It is an arithmetic number, because the mean of its divisors is an integer number (235480708).

Almost surely, 2^941785561 is an apocalyptic number.

It is an amenable number.

941785561 is a deficient number, since it is larger than the sum of its proper divisors (137271).

941785561 is a wasteful number, since it uses less digits than its factorization.

941785561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137270.

The product of its digits is 302400, while the sum is 46.

The square root of 941785561 is about 30688.5249075285. The cubic root of 941785561 is about 980.2059684394.

The spelling of 941785561 in words is "nine hundred forty-one million, seven hundred eighty-five thousand, five hundred sixty-one".