1898872373 has 2 divisors, whose sum is σ = 1898872374. Its totient is φ = 1898872372.

The previous prime is 1898872363. The next prime is 1898872399. The reversal of 1898872373 is 3732788981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1752510769 + 146361604 = 41863^2 + 12098^2 .

It is a cyclic number.

It is not a de Polignac number, because 1898872373 - 2⁶ = 1898872309 is a prime.

It is a super-2 number, since 2×1898872373² = 7211432577885302258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1898872363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 949436186 + 949436187.

It is an arithmetic number, because the mean of its divisors is an integer number (949436187).

Almost surely, 2^1898872373 is an apocalyptic number.

It is an amenable number.

1898872373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1898872373 is an equidigital number, since it uses as much as digits as its factorization.

1898872373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 56.

The square root of 1898872373 is about 43576.0527468930. The cubic root of 1898872373 is about 1238.3172572248.

The spelling of 1898872373 in words is "one billion, eight hundred ninety-eight million, eight hundred seventy-two thousand, three hundred seventy-three".