2493676421 has 2 divisors, whose sum is σ = 2493676422. Its totient is φ = 2493676420.

The previous prime is 2493676411. The next prime is 2493676439. The reversal of 2493676421 is 1246763942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1514299396 + 979377025 = 38914^2 + 31295^2 .

It is a cyclic number.

It is not a de Polignac number, because 2493676421 - 2⁶ = 2493676357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2493676411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1246838210 + 1246838211.

It is an arithmetic number, because the mean of its divisors is an integer number (1246838211).

Almost surely, 2^2493676421 is an apocalyptic number.

It is an amenable number.

2493676421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2493676421 is an equidigital number, since it uses as much as digits as its factorization.

2493676421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The square root of 2493676421 is about 49936.7241716955. The cubic root of 2493676421 is about 1356.0635198285.

The spelling of 2493676421 in words is "two billion, four hundred ninety-three million, six hundred seventy-six thousand, four hundred twenty-one".