353619949 has 4 divisors (see below), whose sum is σ = 353691936. Its totient is φ = 353547964.

The previous prime is 353619911. The next prime is 353619961. The reversal of 353619949 is 949916353.

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.

It is a cyclic number.

It is not a de Polignac number, because 353619949 - 2²¹ = 351522797 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 (353619979) 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, 28039 + ... + 38644.

It is an arithmetic number, because the mean of its divisors is an integer number (88422984).

Almost surely, 2^353619949 is an apocalyptic number.

It is an amenable number.

353619949 is a deficient number, since it is larger than the sum of its proper divisors (71987).

353619949 is an equidigital number, since it uses as much as digits as its factorization.

353619949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71986.

The product of its digits is 787320, while the sum is 49.

The square root of 353619949 is about 18804.7852686490. The cubic root of 353619949 is about 707.1511506735.

The spelling of 353619949 in words is "three hundred fifty-three million, six hundred nineteen thousand, nine hundred forty-nine".