648272 has 20 divisors (see below), whose sum is σ = 1297536. Its totient is φ = 313440.

The previous prime is 648269. The next prime is 648283. The reversal of 648272 is 272846.

648272 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158 + ... + 1149.

2⁶⁴⁸²⁷² is an apocalyptic number.

648272 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

648272 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

648272 is a wasteful number, since it uses less digits than its factorization.

648272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1340 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 648272 is about 805.1534015329. The cubic root of 648272 is about 86.5470802989.

The spelling of 648272 in words is "six hundred forty-eight thousand, two hundred seventy-two".