1676374621 has 2 divisors, whose sum is σ = 1676374622. Its totient is φ = 1676374620.

The previous prime is 1676374613. The next prime is 1676374649. The reversal of 1676374621 is 1264736761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1435348996 + 241025625 = 37886^2 + 15525^2 .

It is a cyclic number.

It is not a de Polignac number, because 1676374621 - 2³ = 1676374613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1676374691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838187310 + 838187311.

It is an arithmetic number, because the mean of its divisors is an integer number (838187311).

Almost surely, 2^1676374621 is an apocalyptic number.

It is an amenable number.

1676374621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1676374621 is an equidigital number, since it uses as much as digits as its factorization.

1676374621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 43.

The square root of 1676374621 is about 40943.5540836406. The cubic root of 1676374621 is about 1187.9286568595.

The spelling of 1676374621 in words is "one billion, six hundred seventy-six million, three hundred seventy-four thousand, six hundred twenty-one".