89405644 has 6 divisors (see below), whose sum is σ = 156459884. Its totient is φ = 44702820.

The previous prime is 89405629. The next prime is 89405651. The reversal of 89405644 is 44650498.

It is a junction number, because it is equal to n+sod(n) for n = 89405597 and 89405606.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11175702 + ... + 11175709.

Almost surely, 2^89405644 is an apocalyptic number.

It is an amenable number.

89405644 is a deficient number, since it is larger than the sum of its proper divisors (67054240).

89405644 is a wasteful number, since it uses less digits than its factorization.

89405644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22351415 (or 22351413 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 89405644 is about 9455.4557796015. The cubic root of 89405644 is about 447.1517951268.

The spelling of 89405644 in words is "eighty-nine million, four hundred five thousand, six hundred forty-four".