88305381 has 6 divisors (see below), whose sum is σ = 127552230. Its totient is φ = 58870248.

The previous prime is 88305379. The next prime is 88305383. The reversal of 88305381 is 18350388.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (88305379) and next prime (88305383).

It can be written as a sum of positive squares in only one way, i.e., 62964225 + 25341156 = 7935^2 + 5034^2 .

It is not a de Polignac number, because 88305381 - 2¹ = 88305379 is a prime.

It is a super-2 number, since 2×88305381² = 15595680627110322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88305383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4905846 + ... + 4905863.

It is an arithmetic number, because the mean of its divisors is an integer number (21258705).

Almost surely, 2^88305381 is an apocalyptic number.

It is an amenable number.

88305381 is a deficient number, since it is larger than the sum of its proper divisors (39246849).

88305381 is a wasteful number, since it uses less digits than its factorization.

88305381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9811715 (or 9811712 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 88305381 is about 9397.0942849372. The cubic root of 88305381 is about 445.3099402032.

The spelling of 88305381 in words is "eighty-eight million, three hundred five thousand, three hundred eighty-one".