1627661093 has 2 divisors, whose sum is σ = 1627661094. Its totient is φ = 1627661092.

The previous prime is 1627661081. The next prime is 1627661099. The reversal of 1627661093 is 3901667261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1602641089 + 25020004 = 40033^2 + 5002^2 .

It is a cyclic number.

It is not a de Polignac number, because 1627661093 - 2⁶ = 1627661029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1627661093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1627661099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813830546 + 813830547.

It is an arithmetic number, because the mean of its divisors is an integer number (813830547).

Almost surely, 2^1627661093 is an apocalyptic number.

It is an amenable number.

1627661093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1627661093 is an equidigital number, since it uses as much as digits as its factorization.

1627661093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 1627661093 is about 40344.2820359961. The cubic root of 1627661093 is about 1176.3087497925.

The spelling of 1627661093 in words is "one billion, six hundred twenty-seven million, six hundred sixty-one thousand, ninety-three".