1673570641 has 2 divisors, whose sum is σ = 1673570642. Its totient is φ = 1673570640.

The previous prime is 1673570617. The next prime is 1673570663. The reversal of 1673570641 is 1460753761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 872907025 + 800663616 = 29545^2 + 28296^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673570641 - 2²³ = 1665182033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1673570594 and 1673570603.

It is not a weakly prime, because it can be changed into another prime (1673570611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836785320 + 836785321.

It is an arithmetic number, because the mean of its divisors is an integer number (836785321).

Almost surely, 2^1673570641 is an apocalyptic number.

It is an amenable number.

1673570641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673570641 is an equidigital number, since it uses as much as digits as its factorization.

1673570641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 1673570641 is about 40909.2977329115. The cubic root of 1673570641 is about 1187.2659595056.

The spelling of 1673570641 in words is "one billion, six hundred seventy-three million, five hundred seventy thousand, six hundred forty-one".