353721361 has 8 divisors (see below), whose sum is σ = 409947264. Its totient is φ = 298919040.

The previous prime is 353721337. The next prime is 353721421. The reversal of 353721361 is 163127353.

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

It is not a de Polignac number, because 353721361 - 2¹⁵ = 353688593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (353721331) 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, 355360 + ... + 356353.

It is an arithmetic number, because the mean of its divisors is an integer number (51243408).

Almost surely, 2^353721361 is an apocalyptic number.

It is an amenable number.

353721361 is a deficient number, since it is larger than the sum of its proper divisors (56225903).

353721361 is an equidigital number, since it uses as much as digits as its factorization.

353721361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711791.

The product of its digits is 11340, while the sum is 31.

The square root of 353721361 is about 18807.4815166731. The cubic root of 353721361 is about 707.2187437287.

The spelling of 353721361 in words is "three hundred fifty-three million, seven hundred twenty-one thousand, three hundred sixty-one".