354625921 has 8 divisors (see below), whose sum is σ = 382301864. Its totient is φ = 327006720.

The previous prime is 354625919. The next prime is 354625939. The reversal of 354625921 is 129526453.

It can be written as a sum of positive squares in 4 ways, for example, as 67831696 + 286794225 = 8236^2 + 16935^2 .

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 354625921 - 2¹ = 354625919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354625961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720 + ... + 26641.

It is an arithmetic number, because the mean of its divisors is an integer number (47787733).

Almost surely, 2^354625921 is an apocalyptic number.

It is an amenable number.

354625921 is a deficient number, since it is larger than the sum of its proper divisors (27675943).

354625921 is a wasteful number, since it uses less digits than its factorization.

354625921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28371.

The product of its digits is 64800, while the sum is 37.

The square root of 354625921 is about 18831.5140389720. The cubic root of 354625921 is about 707.8210796514.

The spelling of 354625921 in words is "three hundred fifty-four million, six hundred twenty-five thousand, nine hundred twenty-one".