192997943 has 4 divisors (see below), whose sum is σ = 193087368. Its totient is φ = 192908520.

The previous prime is 192997939. The next prime is 192997949. The reversal of 192997943 is 349799291.

192997943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349799291 = 19 ⋅18410489.

It is a cyclic number.

It is not a de Polignac number, because 192997943 - 2² = 192997939 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 (192997949) 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, 41393 + ... + 45818.

It is an arithmetic number, because the mean of its divisors is an integer number (48271842).

Almost surely, 2^192997943 is an apocalyptic number.

192997943 is a deficient number, since it is larger than the sum of its proper divisors (89425).

192997943 is an equidigital number, since it uses as much as digits as its factorization.

192997943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89424.

The product of its digits is 1102248, while the sum is 53.

The square root of 192997943 is about 13892.3699562026. The cubic root of 192997943 is about 577.8976034171.

The spelling of 192997943 in words is "one hundred ninety-two million, nine hundred ninety-seven thousand, nine hundred forty-three".