10020899 has 4 divisors (see below), whose sum is σ = 11452464. Its totient is φ = 8589336.

The previous prime is 10020889. The next prime is 10020931. The reversal of 10020899 is 99802001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10020899 - 2⁸ = 10020643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10020859) 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, 715772 + ... + 715785.

It is an arithmetic number, because the mean of its divisors is an integer number (2863116).

Almost surely, 2^10020899 is an apocalyptic number.

10020899 is a deficient number, since it is larger than the sum of its proper divisors (1431565).

10020899 is an equidigital number, since it uses as much as digits as its factorization.

10020899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431564.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 10020899 is about 3165.5803575332. The cubic root of 10020899 is about 215.5934496721.

The spelling of 10020899 in words is "ten million, twenty thousand, eight hundred ninety-nine".