9975458 has 4 divisors (see below), whose sum is σ = 14963190. Its totient is φ = 4987728.

The previous prime is 9975457. The next prime is 9975461. The reversal of 9975458 is 8545799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8545799 = 1499 ⋅5701.

It can be written as a sum of positive squares in only one way, i.e., 9840769 + 134689 = 3137^2 + 367^2 .

It is not an unprimeable number, because it can be changed into a prime (9975451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2493863 + ... + 2493866.

Almost surely, 2^9975458 is an apocalyptic number.

9975458 is a deficient number, since it is larger than the sum of its proper divisors (4987732).

9975458 is a wasteful number, since it uses less digits than its factorization.

9975458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987731.

The product of its digits is 453600, while the sum is 47.

The square root of 9975458 is about 3158.3948454872. The cubic root of 9975458 is about 215.2670775038.

It can be divided in two parts, 99 and 75458, that added together give a palindrome (75557).

The spelling of 9975458 in words is "nine million, nine hundred seventy-five thousand, four hundred fifty-eight".