89729079 has 16 divisors (see below), whose sum is σ = 130690560. Its totient is φ = 54308160.

The previous prime is 89729051. The next prime is 89729083. The reversal of 89729079 is 97092798.

It is a happy number.

It is not a de Polignac number, because 89729079 - 2¹² = 89724983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89729099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32979 + ... + 35595.

It is an arithmetic number, because the mean of its divisors is an integer number (8168160).

Almost surely, 2^89729079 is an apocalyptic number.

89729079 is a deficient number, since it is larger than the sum of its proper divisors (40961481).

89729079 is a wasteful number, since it uses less digits than its factorization.

89729079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670.

The product of its (nonzero) digits is 571536, while the sum is 51.

The square root of 89729079 is about 9472.5434282457. The cubic root of 89729079 is about 447.6903535650.

The spelling of 89729079 in words is "eighty-nine million, seven hundred twenty-nine thousand, seventy-nine".