87923101 has 6 divisors (see below), whose sum is σ = 102277950. Its totient is φ = 75362616.

The previous prime is 87923093. The next prime is 87923111. The reversal of 87923101 is 10132978.

It can be written as a sum of positive squares in only one way, i.e., 81920601 + 6002500 = 9051^2 + 2450^2 .

It is not a de Polignac number, because 87923101 - 2³ = 87923093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87923111) 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, 897126 + ... + 897223.

It is an arithmetic number, because the mean of its divisors is an integer number (17046325).

Almost surely, 2^87923101 is an apocalyptic number.

It is an amenable number.

87923101 is a deficient number, since it is larger than the sum of its proper divisors (14354849).

87923101 is a wasteful number, since it uses less digits than its factorization.

87923101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794363 (or 1794356 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 87923101 is about 9376.7318933624. The cubic root of 87923101 is about 444.6664183524. Note that the first 3 decimals are identical.

The spelling of 87923101 in words is "eighty-seven million, nine hundred twenty-three thousand, one hundred one".