641272027 has 8 divisors (see below), whose sum is σ = 707999040. Its totient is φ = 575949960.

The previous prime is 641272019. The next prime is 641272033. The reversal of 641272027 is 720272146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641272027 - 2³ = 641272019 is a prime.

It is a super-2 number, since 2×641272027² = 822459625225377458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 641272027.

It is not an unprimeable number, because it can be changed into a prime (641272087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350277 + ... + 352102.

It is an arithmetic number, because the mean of its divisors is an integer number (88499880).

Almost surely, 2^641272027 is an apocalyptic number.

641272027 is a deficient number, since it is larger than the sum of its proper divisors (66727013).

641272027 is a wasteful number, since it uses less digits than its factorization.

641272027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702473.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 641272027 is about 25323.3494427574. The cubic root of 641272027 is about 862.3444354874.

The spelling of 641272027 in words is "six hundred forty-one million, two hundred seventy-two thousand, twenty-seven".