8320201990 has 8 divisors (see below), whose sum is σ = 14976363600. Its totient is φ = 3328080792.

The previous prime is 8320201963. The next prime is 8320202017. The reversal of 8320201990 is 991020238.

It is an interprime number because it is at equal distance from previous prime (8320201963) and next prime (8320202017).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8320201990² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 416010090 + ... + 416010109.

It is an arithmetic number, because the mean of its divisors is an integer number (1872045450).

Almost surely, 2^8320201990 is an apocalyptic number.

8320201990 is a deficient number, since it is larger than the sum of its proper divisors (6656161610).

8320201990 is a wasteful number, since it uses less digits than its factorization.

8320201990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832020206.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 8320201990 is about 91215.1412321441. The cubic root of 8320201990 is about 2026.3352055900.

The spelling of 8320201990 in words is "eight billion, three hundred twenty million, two hundred one thousand, nine hundred ninety".