229621397 has 8 divisors (see below), whose sum is σ = 253699776. Its totient is φ = 206717632.

The previous prime is 229621349. The next prime is 229621417. The reversal of 229621397 is 793126922.

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 229621397 - 2¹⁶ = 229555861 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 (229621307) 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 7 ways as a sum of consecutive naturals, for example, 293243 + ... + 294024.

It is an arithmetic number, because the mean of its divisors is an integer number (31712472).

Almost surely, 2^229621397 is an apocalyptic number.

It is an amenable number.

229621397 is a deficient number, since it is larger than the sum of its proper divisors (24078379).

229621397 is a wasteful number, since it uses less digits than its factorization.

229621397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587307.

The product of its digits is 81648, while the sum is 41.

The square root of 229621397 is about 15153.2635758770. The cubic root of 229621397 is about 612.3561984778.

The spelling of 229621397 in words is "two hundred twenty-nine million, six hundred twenty-one thousand, three hundred ninety-seven".