354637609 has 2 divisors, whose sum is σ = 354637610. Its totient is φ = 354637608.

The previous prime is 354637601. The next prime is 354637631. The reversal of 354637609 is 906736453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284664384 + 69973225 = 16872^2 + 8365^2 .

It is a cyclic number.

It is not a de Polignac number, because 354637609 - 2³ = 354637601 is a prime.

It is not a weakly prime, because it can be changed into another prime (354637601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177318804 + 177318805.

It is an arithmetic number, because the mean of its divisors is an integer number (177318805).

Almost surely, 2^354637609 is an apocalyptic number.

It is an amenable number.

354637609 is a deficient number, since it is larger than the sum of its proper divisors (1).

354637609 is an equidigital number, since it uses as much as digits as its factorization.

354637609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 43.

The square root of 354637609 is about 18831.8243672779. The cubic root of 354637609 is about 707.8288558473.

The spelling of 354637609 in words is "three hundred fifty-four million, six hundred thirty-seven thousand, six hundred nine".