8201899 has 4 divisors (see below), whose sum is σ = 8208720. Its totient is φ = 8195080.

The previous prime is 8201891. The next prime is 8201903. The reversal of 8201899 is 9981028.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8201899 - 2³ = 8201891 is a prime.

It is a super-2 number, since 2×8201899² = 134542294412402, which contains 22 as substring.

It is a Duffinian number.

8201899 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8201891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072 + ... + 4189.

It is an arithmetic number, because the mean of its divisors is an integer number (2052180).

Almost surely, 2^8201899 is an apocalyptic number.

8201899 is a deficient number, since it is larger than the sum of its proper divisors (6821).

8201899 is a wasteful number, since it uses less digits than its factorization.

8201899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 8201899 is about 2863.8957732432. The cubic root of 8201899 is about 201.6685329457.

The spelling of 8201899 in words is "eight million, two hundred one thousand, eight hundred ninety-nine".