203426297 has 8 divisors (see below), whose sum is σ = 209141352. Its totient is φ = 197747200.

The previous prime is 203426291. The next prime is 203426299. The reversal of 203426297 is 792624302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50176 + 203376121 = 224^2 + 14261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203426297 - 2⁴ = 203426281 is a prime.

It is a super-2 number, since 2×203426297² = 82764516622264418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203426291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2693 + ... + 20349.

It is an arithmetic number, because the mean of its divisors is an integer number (26142669).

Almost surely, 2^203426297 is an apocalyptic number.

It is an amenable number.

203426297 is a deficient number, since it is larger than the sum of its proper divisors (5715055).

203426297 is a wasteful number, since it uses less digits than its factorization.

203426297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17979.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 203426297 is about 14262.7590949297. The cubic root of 203426297 is about 588.1241745322.

The spelling of 203426297 in words is "two hundred three million, four hundred twenty-six thousand, two hundred ninety-seven".