94809881 has 4 divisors (see below), whose sum is σ = 95042100. Its totient is φ = 94577664.

The previous prime is 94809877. The next prime is 94809919. The reversal of 94809881 is 18890849.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18890849 = 443 ⋅42643.

It can be written as a sum of positive squares in 2 ways, for example, as 83814025 + 10995856 = 9155^2 + 3316^2 .

It is a cyclic number.

It is not a de Polignac number, because 94809881 - 2² = 94809877 is a prime.

It is a super-2 number, since 2×94809881² = 17977827070468322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94809581) 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, 115496 + ... + 116313.

It is an arithmetic number, because the mean of its divisors is an integer number (23760525).

Almost surely, 2^94809881 is an apocalyptic number.

It is an amenable number.

94809881 is a deficient number, since it is larger than the sum of its proper divisors (232219).

94809881 is a wasteful number, since it uses less digits than its factorization.

94809881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232218.

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 94809881 is about 9737.0365615006. The cubic root of 94809881 is about 455.9856762326.

The spelling of 94809881 in words is "ninety-four million, eight hundred nine thousand, eight hundred eighty-one".