357625921 has 3 divisors (see below), whose sum is σ = 357644833. Its totient is φ = 357607010.

The previous prime is 357625907. The next prime is 357625987. The reversal of 357625921 is 129526753.

The square root of 357625921 is 18911.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 129526753 = 53 ⋅2443901.

It is not a de Polignac number, because 357625921 - 2¹¹ = 357623873 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (357625901) 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 2 ways as a sum of consecutive naturals, for example, 9456 + ... + 28366.

Almost surely, 2^357625921 is an apocalyptic number.

357625921 is the 18911-st square number.

357625921 is the 9456-th centered octagonal number.

It is an amenable number.

357625921 is a deficient number, since it is larger than the sum of its proper divisors (18912).

357625921 is an frugal number, since it uses more digits than its factorization.

357625921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37822 (or 18911 counting only the distinct ones).

The product of its digits is 113400, while the sum is 40.

The cubic root of 357625921 is about 709.8114430187.

The spelling of 357625921 in words is "three hundred fifty-seven million, six hundred twenty-five thousand, nine hundred twenty-one".