89708529 has 16 divisors (see below), whose sum is σ = 122515200. Its totient is φ = 58371456.

The previous prime is 89708527. The next prime is 89708543. The reversal of 89708529 is 92580798.

It is a happy number.

It is not a de Polignac number, because 89708529 - 2¹ = 89708527 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89708527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18967 + ... + 23219.

It is an arithmetic number, because the mean of its divisors is an integer number (7657200).

Almost surely, 2^89708529 is an apocalyptic number.

89708529 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

89708529 is a deficient number, since it is larger than the sum of its proper divisors (32806671).

89708529 is a wasteful number, since it uses less digits than its factorization.

89708529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 89708529 is about 9471.4586521824. The cubic root of 89708529 is about 447.6561738643.

The spelling of 89708529 in words is "eighty-nine million, seven hundred eight thousand, five hundred twenty-nine".