10009902 has 16 divisors (see below), whose sum is σ = 22879872. Its totient is φ = 2859960.

The previous prime is 10009897. The next prime is 10009907. The reversal of 10009902 is 20990001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10009897) and next prime (10009907).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10009907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119124 + ... + 119207.

It is an arithmetic number, because the mean of its divisors is an integer number (1429992).

Almost surely, 2^10009902 is an apocalyptic number.

10009902 is an abundant number, since it is smaller than the sum of its proper divisors (12869970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10009902 is a wasteful number, since it uses less digits than its factorization.

10009902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238343.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 10009902 is about 3163.8429164546. The cubic root of 10009902 is about 215.5145562525.

Adding to 10009902 its reverse (20990001), we get a palindrome (30999903).

The spelling of 10009902 in words is "ten million, nine thousand, nine hundred two".