30802493 has 2 divisors, whose sum is σ = 30802494. Its totient is φ = 30802492.

The previous prime is 30802489. The next prime is 30802501. The reversal of 30802493 is 39420803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25775929 + 5026564 = 5077^2 + 2242^2 .

It is a cyclic number.

It is not a de Polignac number, because 30802493 - 2² = 30802489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30802433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15401246 + 15401247.

It is an arithmetic number, because the mean of its divisors is an integer number (15401247).

Almost surely, 2^30802493 is an apocalyptic number.

It is an amenable number.

30802493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30802493 is an equidigital number, since it uses as much as digits as its factorization.

30802493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 30802493 is about 5549.9993693693. Note that the first 3 decimals coincide. The cubic root of 30802493 is about 313.4694985617.

The spelling of 30802493 in words is "thirty million, eight hundred two thousand, four hundred ninety-three".