30793493 has 2 divisors, whose sum is σ = 30793494. Its totient is φ = 30793492.

The previous prime is 30793487. The next prime is 30793519. The reversal of 30793493 is 39439703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30724849 + 68644 = 5543^2 + 262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30793493 is a prime.

It is a super-2 number, since 2×30793493² = 1896478422282098, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30793453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15396746 + 15396747.

It is an arithmetic number, because the mean of its divisors is an integer number (15396747).

Almost surely, 2^30793493 is an apocalyptic number.

It is an amenable number.

30793493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30793493 is an equidigital number, since it uses as much as digits as its factorization.

30793493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 38.

The square root of 30793493 is about 5549.1884992312. The cubic root of 30793493 is about 313.4389653155.

The spelling of 30793493 in words is "thirty million, seven hundred ninety-three thousand, four hundred ninety-three".