397029903 has 8 divisors (see below), whose sum is σ = 531646128. Its totient is φ = 263550144.

The previous prime is 397029901. The next prime is 397029911. The reversal of 397029903 is 309920793.

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

It is not a de Polignac number, because 397029903 - 2¹ = 397029901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397029901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283300 + ... + 284697.

It is an arithmetic number, because the mean of its divisors is an integer number (66455766).

Almost surely, 2^397029903 is an apocalyptic number.

397029903 is a deficient number, since it is larger than the sum of its proper divisors (134616225).

397029903 is a wasteful number, since it uses less digits than its factorization.

397029903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568233.

The product of its (nonzero) digits is 91854, while the sum is 42.

The square root of 397029903 is about 19925.6092253160. The cubic root of 397029903 is about 734.9781121716.

The spelling of 397029903 in words is "three hundred ninety-seven million, twenty-nine thousand, nine hundred three".