9958555 has 16 divisors (see below), whose sum is σ = 12302784. Its totient is φ = 7735680.

The previous prime is 9958537. The next prime is 9958573. The reversal of 9958555 is 5558599.

It is a happy number.

9958555 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9958537) and next prime (9958573).

It is not a de Polignac number, because 9958555 - 2¹³ = 9950363 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31257 + ... + 31573.

It is an arithmetic number, because the mean of its divisors is an integer number (768924).

Almost surely, 2^9958555 is an apocalyptic number.

9958555 is a deficient number, since it is larger than the sum of its proper divisors (2344229).

9958555 is a wasteful number, since it uses less digits than its factorization.

9958555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

The product of its digits is 405000, while the sum is 46.

The square root of 9958555 is about 3155.7178264224. The cubic root of 9958555 is about 215.1454217184.

The spelling of 9958555 in words is "nine million, nine hundred fifty-eight thousand, five hundred fifty-five".