352216273 has 4 divisors (see below), whose sum is σ = 367530048. Its totient is φ = 336902500.

The previous prime is 352216259. The next prime is 352216279. The reversal of 352216273 is 372612253.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 372612253 = 13 ⋅28662481.

It is a cyclic number.

It is not a de Polignac number, because 352216273 - 2⁹ = 352215761 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352216279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7656853 + ... + 7656898.

It is an arithmetic number, because the mean of its divisors is an integer number (91882512).

Almost surely, 2^352216273 is an apocalyptic number.

It is an amenable number.

352216273 is a deficient number, since it is larger than the sum of its proper divisors (15313775).

352216273 is a wasteful number, since it uses less digits than its factorization.

352216273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15313774.

The product of its digits is 15120, while the sum is 31.

The square root of 352216273 is about 18767.4258490609. The cubic root of 352216273 is about 706.2142433355.

The spelling of 352216273 in words is "three hundred fifty-two million, two hundred sixteen thousand, two hundred seventy-three".