87272736 has 24 divisors (see below), whose sum is σ = 229091184. Its totient is φ = 29090880.

The previous prime is 87272729. The next prime is 87272737. The reversal of 87272736 is 63727278.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (87272737) 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, 454450 + ... + 454641.

It is an arithmetic number, because the mean of its divisors is an integer number (9545466).

Almost surely, 2^87272736 is an apocalyptic number.

It is an amenable number.

87272736 is an abundant number, since it is smaller than the sum of its proper divisors (141818448).

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

87272736 is a wasteful number, since it uses less digits than its factorization.

87272736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909104 (or 909096 counting only the distinct ones).

The product of its digits is 197568, while the sum is 42.

The square root of 87272736 is about 9341.9877970376. The cubic root of 87272736 is about 443.5673083577.

The spelling of 87272736 in words is "eighty-seven million, two hundred seventy-two thousand, seven hundred thirty-six".