1627244401 has 4 divisors (see below), whose sum is σ = 1636650612. Its totient is φ = 1617838192.

The previous prime is 1627244389. The next prime is 1627244407. The reversal of 1627244401 is 1044427261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1310440000 + 316804401 = 36200^2 + 17799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1627244401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1627244407) 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, 4702846 + ... + 4703191.

It is an arithmetic number, because the mean of its divisors is an integer number (409162653).

Almost surely, 2^1627244401 is an apocalyptic number.

It is an amenable number.

1627244401 is a deficient number, since it is larger than the sum of its proper divisors (9406211).

1627244401 is an equidigital number, since it uses as much as digits as its factorization.

1627244401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9406210.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 1627244401 is about 40339.1175039812. The cubic root of 1627244401 is about 1176.2083602864.

The spelling of 1627244401 in words is "one billion, six hundred twenty-seven million, two hundred forty-four thousand, four hundred one".