354351709 has 8 divisors (see below), whose sum is σ = 359541432. Its totient is φ = 349171200.

The previous prime is 354351671. The next prime is 354351721. The reversal of 354351709 is 907153453.

It can be written as a sum of positive squares in 4 ways, for example, as 54715609 + 299636100 = 7397^2 + 17310^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 354351709 - 2¹⁵ = 354318941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354354709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125109 + ... + 127909.

It is an arithmetic number, because the mean of its divisors is an integer number (44942679).

Almost surely, 2^354351709 is an apocalyptic number.

It is an amenable number.

354351709 is a deficient number, since it is larger than the sum of its proper divisors (5189723).

354351709 is a wasteful number, since it uses less digits than its factorization.

354351709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 354351709 is about 18824.2319630842. The cubic root of 354351709 is about 707.6385933836.

The spelling of 354351709 in words is "three hundred fifty-four million, three hundred fifty-one thousand, seven hundred nine".