99257386 has 4 divisors (see below), whose sum is σ = 148886082. Its totient is φ = 49628692.

The previous prime is 99257371. The next prime is 99257399. The reversal of 99257386 is 68375299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68375299 = 7817 ⋅8747.

It can be written as a sum of positive squares in only one way, i.e., 78872161 + 20385225 = 8881^2 + 4515^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24814345 + ... + 24814348.

Almost surely, 2^99257386 is an apocalyptic number.

99257386 is a deficient number, since it is larger than the sum of its proper divisors (49628696).

99257386 is a wasteful number, since it uses less digits than its factorization.

99257386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49628695.

The product of its digits is 816480, while the sum is 49.

The square root of 99257386 is about 9962.8001084033. The cubic root of 99257386 is about 463.0070578159.

The spelling of 99257386 in words is "ninety-nine million, two hundred fifty-seven thousand, three hundred eighty-six".