89839620 has 72 divisors (see below), whose sum is σ = 293483736. Its totient is φ = 22113792.

The previous prime is 89839613. The next prime is 89839621. The reversal of 89839620 is 2693898.

It can be written as a sum of positive squares in 4 ways, for example, as 82944 + 89756676 = 288^2 + 9474^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (89839621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16857 + ... + 21536.

It is an arithmetic number, because the mean of its divisors is an integer number (4076163).

Almost surely, 2^89839620 is an apocalyptic number.

It is an amenable number.

89839620 is an abundant number, since it is smaller than the sum of its proper divisors (203644116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89839620 is a wasteful number, since it uses less digits than its factorization.

89839620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38421 (or 38416 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 89839620 is about 9478.3764432523. The cubic root of 89839620 is about 447.8741209370.

The spelling of 89839620 in words is "eighty-nine million, eight hundred thirty-nine thousand, six hundred twenty".