673898437 has 2 divisors, whose sum is σ = 673898438. Its totient is φ = 673898436.

The previous prime is 673898431. The next prime is 673898443. The reversal of 673898437 is 734898376.

It is a balanced prime because it is at equal distance from previous prime (673898431) and next prime (673898443).

It can be written as a sum of positive squares in only one way, i.e., 520113636 + 153784801 = 22806^2 + 12401^2 .

It is a cyclic number.

It is not a de Polignac number, because 673898437 - 2²⁷ = 539680709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673898431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336949218 + 336949219.

It is an arithmetic number, because the mean of its divisors is an integer number (336949219).

Almost surely, 2^673898437 is an apocalyptic number.

It is an amenable number.

673898437 is a deficient number, since it is larger than the sum of its proper divisors (1).

673898437 is an equidigital number, since it uses as much as digits as its factorization.

673898437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 55.

The square root of 673898437 is about 25959.5538675070. The cubic root of 673898437 is about 876.7278779821.

The spelling of 673898437 in words is "six hundred seventy-three million, eight hundred ninety-eight thousand, four hundred thirty-seven".