89662693428 has 288 divisors, whose sum is σ = 299833567488. Its totient is φ = 21872332800.

The previous prime is 89662693423. The next prime is 89662693433. The reversal of 89662693428 is 82439626698.

89662693428 is a `hidden beast` number, since 8 + 96 + 62 + 69 + 3 + 428 = 666.

It is an interprime number because it is at equal distance from previous prime (89662693423) and next prime (89662693433).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89662693423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25492326 + ... + 25495842.

It is an arithmetic number, because the mean of its divisors is an integer number (1041088776).

Almost surely, 2^89662693428 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 89662693428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149916783744).

89662693428 is an abundant number, since it is smaller than the sum of its proper divisors (210170874060).

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

89662693428 is a wasteful number, since it uses less digits than its factorization.

89662693428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103 (or 4098 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 63.

The spelling of 89662693428 in words is "eighty-nine billion, six hundred sixty-two million, six hundred ninety-three thousand, four hundred twenty-eight".