30748349 has 2 divisors, whose sum is σ = 30748350. Its totient is φ = 30748348.

The previous prime is 30748307. The next prime is 30748357. The reversal of 30748349 is 94384703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18983449 + 11764900 = 4357^2 + 3430^2 .

It is a cyclic number.

It is not a de Polignac number, because 30748349 - 2⁸ = 30748093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30748379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15374174 + 15374175.

It is an arithmetic number, because the mean of its divisors is an integer number (15374175).

Almost surely, 2^30748349 is an apocalyptic number.

It is an amenable number.

30748349 is a deficient number, since it is larger than the sum of its proper divisors (1).

30748349 is an equidigital number, since it uses as much as digits as its factorization.

30748349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 30748349 is about 5545.1193855498. The cubic root of 30748349 is about 313.2857207217.

The spelling of 30748349 in words is "thirty million, seven hundred forty-eight thousand, three hundred forty-nine".