983191641 has 4 divisors (see below), whose sum is σ = 1310922192. Its totient is φ = 655461092.

The previous prime is 983191631. The next prime is 983191681. The reversal of 983191641 is 146191389.

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, and also an emirpimes, since its reverse is a distinct semiprime: 146191389 = 3 ⋅48730463.

It is a cyclic number.

It is not a de Polignac number, because 983191641 - 2⁹ = 983191129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 983191593 and 983191602.

It is not an unprimeable number, because it can be changed into a prime (983191621) 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, 163865271 + ... + 163865276.

It is an arithmetic number, because the mean of its divisors is an integer number (327730548).

Almost surely, 2^983191641 is an apocalyptic number.

It is an amenable number.

983191641 is a deficient number, since it is larger than the sum of its proper divisors (327730551).

983191641 is a wasteful number, since it uses less digits than its factorization.

983191641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327730550.

The product of its digits is 46656, while the sum is 42.

The square root of 983191641 is about 31355.8868635540. The cubic root of 983191641 is about 994.3655259958.

The spelling of 983191641 in words is "nine hundred eighty-three million, one hundred ninety-one thousand, six hundred forty-one".