1876985401 has 2 divisors, whose sum is σ = 1876985402. Its totient is φ = 1876985400.

The previous prime is 1876985393. The next prime is 1876985437. The reversal of 1876985401 is 1045896781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1842469776 + 34515625 = 42924^2 + 5875^2 .

It is a cyclic number.

It is not a de Polignac number, because 1876985401 - 2³ = 1876985393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1876985491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 938492700 + 938492701.

It is an arithmetic number, because the mean of its divisors is an integer number (938492701).

Almost surely, 2^1876985401 is an apocalyptic number.

It is an amenable number.

1876985401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1876985401 is an equidigital number, since it uses as much as digits as its factorization.

1876985401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 49.

The square root of 1876985401 is about 43324.1895596444. The cubic root of 1876985401 is about 1233.5411209602.

The spelling of 1876985401 in words is "one billion, eight hundred seventy-six million, nine hundred eighty-five thousand, four hundred one".