345939629 has 4 divisors (see below), whose sum is σ = 395359584. Its totient is φ = 296519676.

The previous prime is 345939617. The next prime is 345939653. The reversal of 345939629 is 926939543.

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, and also an emirpimes, since its reverse is a distinct semiprime: 926939543 = 311 ⋅2980513.

It is a cyclic number.

It is not a de Polignac number, because 345939629 - 2¹⁶ = 345874093 is a prime.

It is a super-5 number, since 5×345939629⁵ (a number of 44 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345939679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24709967 + ... + 24709980.

It is an arithmetic number, because the mean of its divisors is an integer number (98839896).

Almost surely, 2^345939629 is an apocalyptic number.

It is an amenable number.

345939629 is a deficient number, since it is larger than the sum of its proper divisors (49419955).

345939629 is an equidigital number, since it uses as much as digits as its factorization.

345939629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49419954.

The product of its digits is 1574640, while the sum is 50.

The square root of 345939629 is about 18599.4523844118. The cubic root of 345939629 is about 701.9940618216.

The spelling of 345939629 in words is "three hundred forty-five million, nine hundred thirty-nine thousand, six hundred twenty-nine".