89615851 has 4 divisors (see below), whose sum is σ = 96509392. Its totient is φ = 82722312.

The previous prime is 89615833. The next prime is 89615923. The reversal of 89615851 is 15851698.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15851698 = 2 ⋅7925849.

It is a cyclic number.

It is not a de Polignac number, because 89615851 - 2⁵ = 89615819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89615798 and 89615807.

It is not an unprimeable number, because it can be changed into a prime (89315851) 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, 3446751 + ... + 3446776.

It is an arithmetic number, because the mean of its divisors is an integer number (24127348).

Almost surely, 2^89615851 is an apocalyptic number.

89615851 is a deficient number, since it is larger than the sum of its proper divisors (6893541).

89615851 is a wasteful number, since it uses less digits than its factorization.

89615851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6893540.

The product of its digits is 86400, while the sum is 43.

The square root of 89615851 is about 9466.5648996877. The cubic root of 89615851 is about 447.5019626850.

The spelling of 89615851 in words is "eighty-nine million, six hundred fifteen thousand, eight hundred fifty-one".