89744445 has 48 divisors (see below), whose sum is σ = 188248320. Its totient is φ = 38610432.

The previous prime is 89744407. The next prime is 89744461. The reversal of 89744445 is 54444798.

It is not a de Polignac number, because 89744445 - 2⁶ = 89744381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89744445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3025 + ... + 13734.

It is an arithmetic number, because the mean of its divisors is an integer number (3921840).

Almost surely, 2^89744445 is an apocalyptic number.

89744445 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

89744445 is an abundant number, since it is smaller than the sum of its proper divisors (98503875).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89744445 is a wasteful number, since it uses less digits than its factorization.

89744445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16794 (or 16791 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 89744445 is about 9473.3544745249. The cubic root of 89744445 is about 447.7159075898.

The spelling of 89744445 in words is "eighty-nine million, seven hundred forty-four thousand, four hundred forty-five".