84551272 has 32 divisors (see below), whose sum is σ = 171145800. Its totient is φ = 38928384.

The previous prime is 84551237. The next prime is 84551281. The reversal of 84551272 is 27215548.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59691076 + 24860196 = 7726^2 + 4986^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59304 + ... + 60712.

Almost surely, 2^84551272 is an apocalyptic number.

It is an amenable number.

84551272 is an abundant number, since it is smaller than the sum of its proper divisors (86594528).

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

84551272 is a wasteful number, since it uses less digits than its factorization.

84551272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005 (or 2001 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The square root of 84551272 is about 9195.1765616545. The cubic root of 84551272 is about 438.9078838070.

The spelling of 84551272 in words is "eighty-four million, five hundred fifty-one thousand, two hundred seventy-two".