91742458 has 8 divisors (see below), whose sum is σ = 139499028. Its totient is φ = 45242784.

The previous prime is 91742447. The next prime is 91742467. The reversal of 91742458 is 85424719.

It can be written as a sum of positive squares in 2 ways, for example, as 88491649 + 3250809 = 9407^2 + 1803^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 91742458.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314041 + ... + 314332.

Almost surely, 2^91742458 is an apocalyptic number.

91742458 is a deficient number, since it is larger than the sum of its proper divisors (47756570).

91742458 is a wasteful number, since it uses less digits than its factorization.

91742458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628448.

The product of its digits is 80640, while the sum is 40.

The square root of 91742458 is about 9578.2283330478. The cubic root of 91742458 is about 451.0141047009.

The spelling of 91742458 in words is "ninety-one million, seven hundred forty-two thousand, four hundred fifty-eight".