353977345 has 4 divisors (see below), whose sum is σ = 424772820. Its totient is φ = 283181872.

The previous prime is 353977331. The next prime is 353977367. The reversal of 353977345 is 543779353.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543779353 = 13 ⋅41829181.

It can be written as a sum of positive squares in 2 ways, for example, as 278756416 + 75220929 = 16696^2 + 8673^2 .

It is a cyclic number.

It is not a de Polignac number, because 353977345 - 2¹⁹ = 353453057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 353977295 and 353977304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35397730 + ... + 35397739.

It is an arithmetic number, because the mean of its divisors is an integer number (106193205).

Almost surely, 2^353977345 is an apocalyptic number.

It is an amenable number.

353977345 is a deficient number, since it is larger than the sum of its proper divisors (70795475).

353977345 is an equidigital number, since it uses as much as digits as its factorization.

353977345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70795474.

The product of its digits is 1190700, while the sum is 46.

The square root of 353977345 is about 18814.2856627617. The cubic root of 353977345 is about 707.3893045609.

The spelling of 353977345 in words is "three hundred fifty-three million, nine hundred seventy-seven thousand, three hundred forty-five".