355620641 has 4 divisors (see below), whose sum is σ = 371082432. Its totient is φ = 340158852.

The previous prime is 355620631. The next prime is 355620647. The reversal of 355620641 is 146026553.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 355620641 - 2¹⁴ = 355604257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 355620598 and 355620607.

It is not an unprimeable number, because it can be changed into a prime (355620647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7730861 + ... + 7730906.

It is an arithmetic number, because the mean of its divisors is an integer number (92770608).

Almost surely, 2^355620641 is an apocalyptic number.

It is an amenable number.

355620641 is a deficient number, since it is larger than the sum of its proper divisors (15461791).

355620641 is a wasteful number, since it uses less digits than its factorization.

355620641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15461790.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 355620641 is about 18857.9065911357. The cubic root of 355620641 is about 708.4822707377.

The spelling of 355620641 in words is "three hundred fifty-five million, six hundred twenty thousand, six hundred forty-one".