193980427 has 4 divisors (see below), whose sum is σ = 197160496. Its totient is φ = 190800360.

The previous prime is 193980403. The next prime is 193980461. The reversal of 193980427 is 724089391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724089391 = 823 ⋅879817.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193980427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193980467) 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, 1589943 + ... + 1590064.

It is an arithmetic number, because the mean of its divisors is an integer number (49290124).

Almost surely, 2^193980427 is an apocalyptic number.

193980427 is a deficient number, since it is larger than the sum of its proper divisors (3180069).

193980427 is an equidigital number, since it uses as much as digits as its factorization.

193980427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180068.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 193980427 is about 13927.6856297089. The cubic root of 193980427 is about 578.8765679395.

The spelling of 193980427 in words is "one hundred ninety-three million, nine hundred eighty thousand, four hundred twenty-seven".