89774388 has 144 divisors (see below), whose sum is σ = 261660672. Its totient is φ = 25704000.

The previous prime is 89774387. The next prime is 89774413. The reversal of 89774388 is 88347798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89774383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 871545 + ... + 871647.

It is an arithmetic number, because the mean of its divisors is an integer number (1817088).

Almost surely, 2^89774388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89774388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130830336).

89774388 is an abundant number, since it is smaller than the sum of its proper divisors (171886284).

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

89774388 is a wasteful number, since it uses less digits than its factorization.

89774388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 221 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 89774388 is about 9474.9347227303. The cubic root of 89774388 is about 447.7656951347.

It can be divided in two parts, 89 and 774388, that added together give a palindrome (774477).

The spelling of 89774388 in words is "eighty-nine million, seven hundred seventy-four thousand, three hundred eighty-eight".