89722649 has 4 divisors (see below), whose sum is σ = 92616960. Its totient is φ = 86828340.

The previous prime is 89722627. The next prime is 89722663. The reversal of 89722649 is 94622798.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94622798 = 2 ⋅47311399.

It is a cyclic number.

It is not a de Polignac number, because 89722649 - 2⁸ = 89722393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89722049) 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 3 ways as a sum of consecutive naturals, for example, 1447109 + ... + 1447170.

It is an arithmetic number, because the mean of its divisors is an integer number (23154240).

Almost surely, 2^89722649 is an apocalyptic number.

It is an amenable number.

89722649 is a deficient number, since it is larger than the sum of its proper divisors (2894311).

89722649 is a wasteful number, since it uses less digits than its factorization.

89722649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894310.

The product of its digits is 435456, while the sum is 47.

The square root of 89722649 is about 9472.2040201845. The cubic root of 89722649 is about 447.6796594557.

The spelling of 89722649 in words is "eighty-nine million, seven hundred twenty-two thousand, six hundred forty-nine".