20193347 has 2 divisors, whose sum is σ = 20193348. Its totient is φ = 20193346.

The previous prime is 20193343. The next prime is 20193419. The reversal of 20193347 is 74339102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20193347 - 2² = 20193343 is a prime.

It is not a weakly prime, because it can be changed into another prime (20193343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10096673 + 10096674.

It is an arithmetic number, because the mean of its divisors is an integer number (10096674).

Almost surely, 2^20193347 is an apocalyptic number.

20193347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20193347 is an equidigital number, since it uses as much as digits as its factorization.

20193347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 20193347 is about 4493.7008133609. The cubic root of 20193347 is about 272.3136655048.

The spelling of 20193347 in words is "twenty million, one hundred ninety-three thousand, three hundred forty-seven".