345623613 has 4 divisors (see below), whose sum is σ = 460831488. Its totient is φ = 230415740.

The previous prime is 345623573. The next prime is 345623633. The reversal of 345623613 is 316326543.

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 345623613 - 2¹⁸ = 345361469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345623633) 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, 57603933 + ... + 57603938.

It is an arithmetic number, because the mean of its divisors is an integer number (115207872).

Almost surely, 2^345623613 is an apocalyptic number.

It is an amenable number.

345623613 is a deficient number, since it is larger than the sum of its proper divisors (115207875).

345623613 is a wasteful number, since it uses less digits than its factorization.

345623613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115207874.

The product of its digits is 38880, while the sum is 33.

The square root of 345623613 is about 18590.9551395295. The cubic root of 345623613 is about 701.7802394068.

The spelling of 345623613 in words is "three hundred forty-five million, six hundred twenty-three thousand, six hundred thirteen".