353990009 has 4 divisors (see below), whose sum is σ = 354149520. Its totient is φ = 353830500.

The previous prime is 353989981. The next prime is 353990017. The reversal of 353990009 is 900099353.

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 353990009 - 2¹² = 353985913 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (353990059) 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, 76379 + ... + 80880.

It is an arithmetic number, because the mean of its divisors is an integer number (88537380).

Almost surely, 2^353990009 is an apocalyptic number.

It is an amenable number.

353990009 is a deficient number, since it is larger than the sum of its proper divisors (159511).

353990009 is a wasteful number, since it uses less digits than its factorization.

353990009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159510.

The product of its (nonzero) digits is 32805, while the sum is 38.

The square root of 353990009 is about 18814.6222125240. The cubic root of 353990009 is about 707.3977403845.

The spelling of 353990009 in words is "three hundred fifty-three million, nine hundred ninety thousand, nine".