87393072 has 40 divisors (see below), whose sum is σ = 243133744. Its totient is φ = 26889984.

The previous prime is 87393049. The next prime is 87393079. The reversal of 87393072 is 27039378.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 87393072.

It is not an unprimeable number, because it can be changed into a prime (87393079) 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 7 ways as a sum of consecutive naturals, for example, 69403 + ... + 70650.

Almost surely, 2^87393072 is an apocalyptic number.

It is an amenable number.

87393072 is an abundant number, since it is smaller than the sum of its proper divisors (155740672).

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

87393072 is a wasteful number, since it uses less digits than its factorization.

87393072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140077 (or 140071 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 87393072 is about 9348.4261777050. The cubic root of 87393072 is about 443.7710856343.

It can be divided in two parts, 8739 and 3072, that added together give a palindrome (11811).

The spelling of 87393072 in words is "eighty-seven million, three hundred ninety-three thousand, seventy-two".