89121826 has 16 divisors (see below), whose sum is σ = 143267904. Its totient is φ = 41470704.

The previous prime is 89121821. The next prime is 89121887. The reversal of 89121826 is 62812198.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (89121821) 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 7 ways as a sum of consecutive naturals, for example, 24480 + ... + 27883.

It is an arithmetic number, because the mean of its divisors is an integer number (8954244).

Almost surely, 2^89121826 is an apocalyptic number.

89121826 is a deficient number, since it is larger than the sum of its proper divisors (54146078).

89121826 is a wasteful number, since it uses less digits than its factorization.

89121826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52425.

The product of its digits is 13824, while the sum is 37.

The square root of 89121826 is about 9440.4356890983. The cubic root of 89121826 is about 446.6781327964.

It can be divided in two parts, 891 and 21826, that multiplied together give a triangular number (19446966 = T₆₂₃₆).

The spelling of 89121826 in words is "eighty-nine million, one hundred twenty-one thousand, eight hundred twenty-six".