9900570 has 16 divisors (see below), whose sum is σ = 23761440. Its totient is φ = 2640144.

The previous prime is 9900547. The next prime is 9900589. The reversal of 9900570 is 750099.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 330019 = 9900570 / (9 + 9 + 0 + 0 + 5 + 7 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164980 + ... + 165039.

It is an arithmetic number, because the mean of its divisors is an integer number (1485090).

Almost surely, 2^9900570 is an apocalyptic number.

9900570 is an abundant number, since it is smaller than the sum of its proper divisors (13860870).

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

9900570 is a wasteful number, since it uses less digits than its factorization.

9900570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330029.

The product of its (nonzero) digits is 2835, while the sum is 30.

The square root of 9900570 is about 3146.5171221527. The cubic root of 9900570 is about 214.7270377677.

The spelling of 9900570 in words is "nine million, nine hundred thousand, five hundred seventy".