89242709 has 4 divisors (see below), whose sum is σ = 89325600. Its totient is φ = 89159820.

The previous prime is 89242667. The next prime is 89242711. The reversal of 89242709 is 90724298.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89242709 - 2⁸ = 89242453 is a prime.

It is a super-2 number, since 2×89242709² = 15928522219317362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89242789) 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, 39809 + ... + 41990.

It is an arithmetic number, because the mean of its divisors is an integer number (22331400).

Almost surely, 2^89242709 is an apocalyptic number.

It is an amenable number.

89242709 is a deficient number, since it is larger than the sum of its proper divisors (82891).

89242709 is a wasteful number, since it uses less digits than its factorization.

89242709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82890.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 89242709 is about 9446.8359253244. The cubic root of 89242709 is about 446.8799965471.

The spelling of 89242709 in words is "eighty-nine million, two hundred forty-two thousand, seven hundred nine".