345089473 has 4 divisors (see below), whose sum is σ = 356989140. Its totient is φ = 333189808.

The previous prime is 345089461. The next prime is 345089509. The reversal of 345089473 is 374980543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 226562704 + 118526769 = 15052^2 + 10887^2 .

It is a cyclic number.

It is not a de Polignac number, because 345089473 - 2¹³ = 345081281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345089453) 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, 5949790 + ... + 5949847.

It is an arithmetic number, because the mean of its divisors is an integer number (89247285).

Almost surely, 2^345089473 is an apocalyptic number.

It is an amenable number.

345089473 is a deficient number, since it is larger than the sum of its proper divisors (11899667).

345089473 is a wasteful number, since it uses less digits than its factorization.

345089473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11899666.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 345089473 is about 18576.5839970647. The cubic root of 345089473 is about 701.4185336370.

The spelling of 345089473 in words is "three hundred forty-five million, eighty-nine thousand, four hundred seventy-three".