193864007 has 2 divisors, whose sum is σ = 193864008. Its totient is φ = 193864006.

The previous prime is 193863953. The next prime is 193864019. The reversal of 193864007 is 700468391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 193864007 - 2¹⁰ = 193862983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193864037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96932003 + 96932004.

It is an arithmetic number, because the mean of its divisors is an integer number (96932004).

Almost surely, 2^193864007 is an apocalyptic number.

193864007 is a deficient number, since it is larger than the sum of its proper divisors (1).

193864007 is an equidigital number, since it uses as much as digits as its factorization.

193864007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 193864007 is about 13923.5055571505. The cubic root of 193864007 is about 578.7607378739.

The spelling of 193864007 in words is "one hundred ninety-three million, eight hundred sixty-four thousand, seven".