345353993 has 8 divisors (see below), whose sum is σ = 361535616. Its totient is φ = 329269600.

The previous prime is 345353977. The next prime is 345354019. The reversal of 345353993 is 399353543.

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

It is a cyclic number.

It is not a de Polignac number, because 345353993 - 2⁴ = 345353977 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 (345353903) 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, 16988 + ... + 31293.

It is an arithmetic number, because the mean of its divisors is an integer number (45191952).

Almost surely, 2^345353993 is an apocalyptic number.

It is an amenable number.

345353993 is a deficient number, since it is larger than the sum of its proper divisors (16181623).

345353993 is a wasteful number, since it uses less digits than its factorization.

345353993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48615.

The product of its digits is 656100, while the sum is 44.

The square root of 345353993 is about 18583.7023491015. The cubic root of 345353993 is about 701.5977063428.

The spelling of 345353993 in words is "three hundred forty-five million, three hundred fifty-three thousand, nine hundred ninety-three".