193473997 has 2 divisors, whose sum is σ = 193473998. Its totient is φ = 193473996.

The previous prime is 193473989. The next prime is 193474027. The reversal of 193473997 is 799374391.

It is a happy number.

193473997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193237801 + 236196 = 13901^2 + 486^2 .

It is a cyclic number.

It is not a de Polignac number, because 193473997 - 2³ = 193473989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193473937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96736998 + 96736999.

It is an arithmetic number, because the mean of its divisors is an integer number (96736999).

Almost surely, 2^193473997 is an apocalyptic number.

It is an amenable number.

193473997 is a deficient number, since it is larger than the sum of its proper divisors (1).

193473997 is an equidigital number, since it uses as much as digits as its factorization.

193473997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1285956, while the sum is 52.

The square root of 193473997 is about 13909.4930533072. The cubic root of 193473997 is about 578.3723659501.

The spelling of 193473997 in words is "one hundred ninety-three million, four hundred seventy-three thousand, nine hundred ninety-seven".