345322639 has 2 divisors, whose sum is σ = 345322640. Its totient is φ = 345322638.

The previous prime is 345322597. The next prime is 345322643. The reversal of 345322639 is 936223543.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345322639 - 2¹³ = 345314447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345322598 and 345322607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345320639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172661319 + 172661320.

It is an arithmetic number, because the mean of its divisors is an integer number (172661320).

Almost surely, 2^345322639 is an apocalyptic number.

345322639 is a deficient number, since it is larger than the sum of its proper divisors (1).

345322639 is an equidigital number, since it uses as much as digits as its factorization.

345322639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 37.

The square root of 345322639 is about 18582.8587413240. The cubic root of 345322639 is about 701.5764734816.

The spelling of 345322639 in words is "three hundred forty-five million, three hundred twenty-two thousand, six hundred thirty-nine".