966146389 has 4 divisors (see below), whose sum is σ = 1040465356. Its totient is φ = 891827424.

The previous prime is 966146369. The next prime is 966146411. The reversal of 966146389 is 983641669.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 983641669 = 19559 ⋅50291.

It can be written as a sum of positive squares in 2 ways, for example, as 202066225 + 764080164 = 14215^2 + 27642^2 .

It is a cyclic number.

It is not a de Polignac number, because 966146389 - 2¹¹ = 966144341 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 (966146309) 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, 37159464 + ... + 37159489.

It is an arithmetic number, because the mean of its divisors is an integer number (260116339).

Almost surely, 2^966146389 is an apocalyptic number.

It is an amenable number.

966146389 is a deficient number, since it is larger than the sum of its proper divisors (74318967).

966146389 is a wasteful number, since it uses less digits than its factorization.

966146389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74318966.

The product of its digits is 1679616, while the sum is 52.

The square root of 966146389 is about 31082.8954410621. The cubic root of 966146389 is about 988.5856718247.

The spelling of 966146389 in words is "nine hundred sixty-six million, one hundred forty-six thousand, three hundred eighty-nine".