393338101 has 4 divisors (see below), whose sum is σ = 423594892. Its totient is φ = 363081312.

The previous prime is 393338087. The next prime is 393338123. The reversal of 393338101 is 101833393.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32376100 + 360962001 = 5690^2 + 18999^2 .

It is a cyclic number.

It is not a de Polignac number, because 393338101 - 2²³ = 384949493 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 (393330101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15128376 + ... + 15128401.

It is an arithmetic number, because the mean of its divisors is an integer number (105898723).

Almost surely, 2^393338101 is an apocalyptic number.

It is an amenable number.

393338101 is a deficient number, since it is larger than the sum of its proper divisors (30256791).

393338101 is a wasteful number, since it uses less digits than its factorization.

393338101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30256790.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 393338101 is about 19832.7532380151. The cubic root of 393338101 is about 732.6929378736.

The spelling of 393338101 in words is "three hundred ninety-three million, three hundred thirty-eight thousand, one hundred one".