88229778 has 64 divisors (see below), whose sum is σ = 218330112. Its totient is φ = 23146560.

The previous prime is 88229777. The next prime is 88229797. The reversal of 88229778 is 87792288.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 88229778.

It is not an unprimeable number, because it can be changed into a prime (88229777) 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 31 ways as a sum of consecutive naturals, for example, 154233 + ... + 154803.

It is an arithmetic number, because the mean of its divisors is an integer number (3411408).

Almost surely, 2^88229778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88229778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109165056).

88229778 is an abundant number, since it is smaller than the sum of its proper divisors (130100334).

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

88229778 is a wasteful number, since it uses less digits than its factorization.

88229778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879.

The product of its digits is 903168, while the sum is 51.

The square root of 88229778 is about 9393.0707439048. The cubic root of 88229778 is about 445.1828192978.

The spelling of 88229778 in words is "eighty-eight million, two hundred twenty-nine thousand, seven hundred seventy-eight".