941689009 has 4 divisors (see below), whose sum is σ = 945016816. Its totient is φ = 938361204.

The previous prime is 941688989. The next prime is 941689027. The reversal of 941689009 is 900986149.

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 a de Polignac number, because none of the positive numbers 2^k-941689009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 941689009.

It is not an unprimeable number, because it can be changed into a prime (941689079) 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, 1663479 + ... + 1664044.

It is an arithmetic number, because the mean of its divisors is an integer number (236254204).

Almost surely, 2^941689009 is an apocalyptic number.

It is an amenable number.

941689009 is a deficient number, since it is larger than the sum of its proper divisors (3327807).

941689009 is a wasteful number, since it uses less digits than its factorization.

941689009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327806.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 941689009 is about 30686.9517710704. The cubic root of 941689009 is about 980.1724703393.

The spelling of 941689009 in words is "nine hundred forty-one million, six hundred eighty-nine thousand, nine".