30497263 has 2 divisors, whose sum is σ = 30497264. Its totient is φ = 30497262.

The previous prime is 30497251. The next prime is 30497267. The reversal of 30497263 is 36279403.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30497263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30497267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15248631 + 15248632.

It is an arithmetic number, because the mean of its divisors is an integer number (15248632).

Almost surely, 2^30497263 is an apocalyptic number.

30497263 is a deficient number, since it is larger than the sum of its proper divisors (1).

30497263 is an equidigital number, since it uses as much as digits as its factorization.

30497263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 30497263 is about 5522.4327066973. The cubic root of 30497263 is about 312.4306423142.

The spelling of 30497263 in words is "thirty million, four hundred ninety-seven thousand, two hundred sixty-three".