9961458 has 16 divisors (see below), whose sum is σ = 21455616. Its totient is φ = 3065040.

The previous prime is 9961451. The next prime is 9961459. The reversal of 9961458 is 8541699.

It is not an unprimeable number, because it can be changed into a prime (9961451) 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, 63778 + ... + 63933.

It is an arithmetic number, because the mean of its divisors is an integer number (1340976).

Almost surely, 2^9961458 is an apocalyptic number.

9961458 is an abundant number, since it is smaller than the sum of its proper divisors (11494158).

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

9961458 is a wasteful number, since it uses less digits than its factorization.

9961458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127729.

The product of its digits is 77760, while the sum is 42.

The square root of 9961458 is about 3156.1777516483. The cubic root of 9961458 is about 215.1663252357.

Subtracting from 9961458 its sum of digits (42), we obtain a triangular number (9961416 = T₄₄₆₃).

The spelling of 9961458 in words is "nine million, nine hundred sixty-one thousand, four hundred fifty-eight".