820362741 has 16 divisors (see below), whose sum is σ = 1202370048. Its totient is φ = 493391600.

The previous prime is 820362737. The next prime is 820362743. The reversal of 820362741 is 147263028.

It is a cyclic number.

It is not a de Polignac number, because 820362741 - 2² = 820362737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820362743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90561 + ... + 99206.

It is an arithmetic number, because the mean of its divisors is an integer number (75148128).

Almost surely, 2^820362741 is an apocalyptic number.

It is an amenable number.

820362741 is a deficient number, since it is larger than the sum of its proper divisors (382007307).

820362741 is a wasteful number, since it uses less digits than its factorization.

820362741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189912.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 820362741 is about 28641.9751588468. The cubic root of 820362741 is about 936.1281590439.

The spelling of 820362741 in words is "eight hundred twenty million, three hundred sixty-two thousand, seven hundred forty-one".