621000272 has 10 divisors (see below), whose sum is σ = 1203188058. Its totient is φ = 310500128.

The previous prime is 621000271. The next prime is 621000301. The reversal of 621000272 is 272000126.

It can be written as a sum of positive squares in only one way, i.e., 380874256 + 240126016 = 19516^2 + 15496^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621000271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19406243 + ... + 19406274.

Almost surely, 2^621000272 is an apocalyptic number.

It is an amenable number.

621000272 is a deficient number, since it is larger than the sum of its proper divisors (582187786).

621000272 is a wasteful number, since it uses less digits than its factorization.

621000272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38812525 (or 38812519 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 621000272 is about 24919.8770462456. The cubic root of 621000272 is about 853.1602185177.

Adding to 621000272 its reverse (272000126), we get a palindrome (893000398).

The spelling of 621000272 in words is "six hundred twenty-one million, two hundred seventy-two", and thus it is an aban number.