87197385400 has 24 divisors (see below), whose sum is σ = 202733921520. Its totient is φ = 34878954080.

The previous prime is 87197385343. The next prime is 87197385409. The reversal of 87197385400 is 458379178.

It is a super-2 number, since 2×87197385400² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87197385409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 217993264 + ... + 217993663.

It is an arithmetic number, because the mean of its divisors is an integer number (8447246730).

Almost surely, 2^87197385400 is an apocalyptic number.

It is an amenable number.

87197385400 is an abundant number, since it is smaller than the sum of its proper divisors (115536536120).

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

87197385400 is a wasteful number, since it uses less digits than its factorization.

87197385400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435986943 (or 435986934 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 87197385400 in words is "eighty-seven billion, one hundred ninety-seven million, three hundred eighty-five thousand, four hundred".