88501381 has 4 divisors (see below), whose sum is σ = 89095500. Its totient is φ = 87907264.

The previous prime is 88501363. The next prime is 88501393. The reversal of 88501381 is 18310588.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25553025 + 62948356 = 5055^2 + 7934^2 .

It is a cyclic number.

It is not a de Polignac number, because 88501381 - 2⁵ = 88501349 is a prime.

It is a super-2 number, since 2×88501381² = 15664988877814322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88501321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296836 + ... + 297133.

It is an arithmetic number, because the mean of its divisors is an integer number (22273875).

Almost surely, 2^88501381 is an apocalyptic number.

It is an amenable number.

88501381 is a deficient number, since it is larger than the sum of its proper divisors (594119).

88501381 is a wasteful number, since it uses less digits than its factorization.

88501381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594118.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 88501381 is about 9407.5172601489. The cubic root of 88501381 is about 445.6391623168.

The spelling of 88501381 in words is "eighty-eight million, five hundred one thousand, three hundred eighty-one".