75870899 has 4 divisors (see below), whose sum is σ = 81707136. Its totient is φ = 70034664.

The previous prime is 75870863. The next prime is 75870901. The reversal of 75870899 is 99807857.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99807857 = 1747 ⋅57131.

It is a cyclic number.

It is not a de Polignac number, because 75870899 - 2¹² = 75866803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75870899.

It is not an unprimeable number, because it can be changed into a prime (75870829) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2918099 + ... + 2918124.

It is an arithmetic number, because the mean of its divisors is an integer number (20426784).

Almost surely, 2^75870899 is an apocalyptic number.

75870899 is a deficient number, since it is larger than the sum of its proper divisors (5836237).

75870899 is a wasteful number, since it uses less digits than its factorization.

75870899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5836236.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The square root of 75870899 is about 8710.3902897631. The cubic root of 75870899 is about 423.3423764094.

The spelling of 75870899 in words is "seventy-five million, eight hundred seventy thousand, eight hundred ninety-nine".