89308649 has 4 divisors (see below), whose sum is σ = 89807760. Its totient is φ = 88809540.

The previous prime is 89308643. The next prime is 89308651. The reversal of 89308649 is 94680398.

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 89308649 - 2⁸ = 89308393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89308643) 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, 249287 + ... + 249644.

It is an arithmetic number, because the mean of its divisors is an integer number (22451940).

Almost surely, 2^89308649 is an apocalyptic number.

It is an amenable number.

89308649 is a deficient number, since it is larger than the sum of its proper divisors (499111).

89308649 is a wasteful number, since it uses less digits than its factorization.

89308649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499110.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 89308649 is about 9450.3253383151. The cubic root of 89308649 is about 446.9900335934.

The spelling of 89308649 in words is "eighty-nine million, three hundred eight thousand, six hundred forty-nine".