8700450091 has 4 divisors (see below), whose sum is σ = 8700749800. Its totient is φ = 8700150384.

The previous prime is 8700450089. The next prime is 8700450103. The reversal of 8700450091 is 1900540078.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1900540078 = 2 ⋅950270039.

It is a cyclic number.

It is not a de Polignac number, because 8700450091 - 2¹ = 8700450089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8700450061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101001 + ... + 166138.

It is an arithmetic number, because the mean of its divisors is an integer number (2175187450).

Almost surely, 2^8700450091 is an apocalyptic number.

8700450091 is a deficient number, since it is larger than the sum of its proper divisors (299709).

8700450091 is a wasteful number, since it uses less digits than its factorization.

8700450091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299708.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 8700450091 is about 93276.2032406980. The cubic root of 8700450091 is about 2056.7455832845.

The spelling of 8700450091 in words is "eight billion, seven hundred million, four hundred fifty thousand, ninety-one".