820675355 has 16 divisors (see below), whose sum is σ = 1013615040. Its totient is φ = 637414272.

The previous prime is 820675343. The next prime is 820675363. The reversal of 820675355 is 553576028.

It is a cyclic number.

It is not a de Polignac number, because 820675355 - 2⁸ = 820675099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85541 + ... + 94649.

It is an arithmetic number, because the mean of its divisors is an integer number (63350940).

Almost surely, 2^820675355 is an apocalyptic number.

820675355 is a deficient number, since it is larger than the sum of its proper divisors (192939685).

820675355 is a wasteful number, since it uses less digits than its factorization.

820675355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9638.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 820675355 is about 28647.4319093353. The cubic root of 820675355 is about 936.2470534422.

The spelling of 820675355 in words is "eight hundred twenty million, six hundred seventy-five thousand, three hundred fifty-five".