354204993 has 4 divisors (see below), whose sum is σ = 472273328. Its totient is φ = 236136660.

The previous prime is 354204923. The next prime is 354205001. The reversal of 354204993 is 399402453.

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 not a de Polignac number, because 354204993 - 2¹⁷ = 354073921 is a prime.

It is a super-3 number, since 3×354204993³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354204913) 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, 59034163 + ... + 59034168.

It is an arithmetic number, because the mean of its divisors is an integer number (118068332).

Almost surely, 2^354204993 is an apocalyptic number.

It is an amenable number.

354204993 is a deficient number, since it is larger than the sum of its proper divisors (118068335).

354204993 is a wasteful number, since it uses less digits than its factorization.

354204993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118068334.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 354204993 is about 18820.3345613196. The cubic root of 354204993 is about 707.5409161951.

The spelling of 354204993 in words is "three hundred fifty-four million, two hundred four thousand, nine hundred ninety-three".