99870794 has 4 divisors (see below), whose sum is σ = 149806194. Its totient is φ = 49935396.

The previous prime is 99870787. The next prime is 99870833. The reversal of 99870794 is 49707899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49707899 = 23 ⋅2161213.

It can be written as a sum of positive squares in only one way, i.e., 99700225 + 170569 = 9985^2 + 413^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24967697 + ... + 24967700.

Almost surely, 2^99870794 is an apocalyptic number.

99870794 is a deficient number, since it is larger than the sum of its proper divisors (49935400).

99870794 is a wasteful number, since it uses less digits than its factorization.

99870794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49935399.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 99870794 is about 9993.5376118770. The cubic root of 99870794 is about 463.9588901598.

The spelling of 99870794 in words is "ninety-nine million, eight hundred seventy thousand, seven hundred ninety-four".