99999458 has 8 divisors (see below), whose sum is σ = 161537628. Its totient is φ = 46153584.

The previous prime is 99999439. The next prime is 99999481. The reversal of 99999458 is 85499999.

It can be written as a sum of positive squares in 2 ways, for example, as 96491329 + 3508129 = 9823^2 + 1873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99999458.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923041 + ... + 1923092.

Almost surely, 2^99999458 is an apocalyptic number.

99999458 is a deficient number, since it is larger than the sum of its proper divisors (61538170).

99999458 is a wasteful number, since it uses less digits than its factorization.

99999458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846148.

The product of its digits is 9447840, while the sum is 62.

The square root of 99999458 is about 9999.9728999633. The cubic root of 99999458 is about 464.1580447794.

The spelling of 99999458 in words is "ninety-nine million, nine hundred ninety-nine thousand, four hundred fifty-eight".