345503983 has 4 divisors (see below), whose sum is σ = 376913448. Its totient is φ = 314094520.

The previous prime is 345503981. The next prime is 345503987. The reversal of 345503983 is 389305543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 389305543 = 11 ⋅35391413.

It is a cyclic number.

It is not a de Polignac number, because 345503983 - 2¹ = 345503981 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 (345503981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15704716 + ... + 15704737.

It is an arithmetic number, because the mean of its divisors is an integer number (94228362).

Almost surely, 2^345503983 is an apocalyptic number.

345503983 is a deficient number, since it is larger than the sum of its proper divisors (31409465).

345503983 is a wasteful number, since it uses less digits than its factorization.

345503983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31409464.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 345503983 is about 18587.7374362777. The cubic root of 345503983 is about 701.6992614730.

The spelling of 345503983 in words is "three hundred forty-five million, five hundred three thousand, nine hundred eighty-three".