9902154 has 16 divisors (see below), whose sum is σ = 20846880. Its totient is φ = 3126960.

The previous prime is 9902153. The next prime is 9902183. The reversal of 9902154 is 4512099.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9902153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43317 + ... + 43544.

It is an arithmetic number, because the mean of its divisors is an integer number (1302930).

Almost surely, 2^9902154 is an apocalyptic number.

9902154 is an abundant number, since it is smaller than the sum of its proper divisors (10944726).

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

9902154 is a wasteful number, since it uses less digits than its factorization.

9902154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86885.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 9902154 is about 3146.7688189634. The cubic root of 9902154 is about 214.7384886064.

The spelling of 9902154 in words is "nine million, nine hundred two thousand, one hundred fifty-four".