89649853 has 4 divisors (see below), whose sum is σ = 92072860. Its totient is φ = 87226848.

The previous prime is 89649829. The next prime is 89649863. The reversal of 89649853 is 35894698.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78110244 + 11539609 = 8838^2 + 3397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89649853 is a prime.

It is a super-2 number, since 2×89649853² = 16074192285843218, which contains 22 as substring.

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 89649853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89649863) 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, 1211448 + ... + 1211521.

It is an arithmetic number, because the mean of its divisors is an integer number (23018215).

Almost surely, 2^89649853 is an apocalyptic number.

It is an amenable number.

89649853 is a deficient number, since it is larger than the sum of its proper divisors (2423007).

89649853 is a wasteful number, since it uses less digits than its factorization.

89649853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423006.

The product of its digits is 1866240, while the sum is 52.

The square root of 89649853 is about 9468.3606289579. The cubic root of 89649853 is about 447.5585525165.

The spelling of 89649853 in words is "eighty-nine million, six hundred forty-nine thousand, eight hundred fifty-three".