942165893 has 4 divisors (see below), whose sum is σ = 942835980. Its totient is φ = 941495808.

The previous prime is 942165881. The next prime is 942165971. The reversal of 942165893 is 398561249.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 398561249 = 2617 ⋅152297.

It can be written as a sum of positive squares in 2 ways, for example, as 324792484 + 617373409 = 18022^2 + 24847^2 .

It is a cyclic number.

It is not a de Polignac number, because 942165893 - 2¹⁸ = 941903749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942165193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332930 + ... + 335747.

It is an arithmetic number, because the mean of its divisors is an integer number (235708995).

Almost surely, 2^942165893 is an apocalyptic number.

It is an amenable number.

942165893 is a deficient number, since it is larger than the sum of its proper divisors (670087).

942165893 is a wasteful number, since it uses less digits than its factorization.

942165893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670086.

The product of its digits is 466560, while the sum is 47.

The square root of 942165893 is about 30694.7209304792. The cubic root of 942165893 is about 980.3378999316.

The spelling of 942165893 in words is "nine hundred forty-two million, one hundred sixty-five thousand, eight hundred ninety-three".