89650981 has 8 divisors (see below), whose sum is σ = 102907520. Its totient is φ = 76506768.

The previous prime is 89650973. The next prime is 89650991. The reversal of 89650981 is 18905698.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89650981 - 2³ = 89650973 is a prime.

It is a super-2 number, since 2×89650981² = 16074596788524722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89650921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26361 + ... + 29566.

It is an arithmetic number, because the mean of its divisors is an integer number (12863440).

Almost surely, 2^89650981 is an apocalyptic number.

It is an amenable number.

89650981 is a deficient number, since it is larger than the sum of its proper divisors (13256539).

89650981 is a wasteful number, since it uses less digits than its factorization.

89650981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56163.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 89650981 is about 9468.4201955765. The cubic root of 89650981 is about 447.5604296118.

The spelling of 89650981 in words is "eighty-nine million, six hundred fifty thousand, nine hundred eighty-one".