30724741 has 2 divisors, whose sum is σ = 30724742. Its totient is φ = 30724740.

The previous prime is 30724723. The next prime is 30724769. The reversal of 30724741 is 14742703.

It is an a-pointer prime, because the next prime (30724769) can be obtained adding 30724741 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23184225 + 7540516 = 4815^2 + 2746^2 .

It is an emirp because it is prime and its reverse (14742703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30724741 - 2⁵ = 30724709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30724721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15362370 + 15362371.

It is an arithmetic number, because the mean of its divisors is an integer number (15362371).

Almost surely, 2^30724741 is an apocalyptic number.

It is an amenable number.

30724741 is a deficient number, since it is larger than the sum of its proper divisors (1).

30724741 is an equidigital number, since it uses as much as digits as its factorization.

30724741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 30724741 is about 5542.9902579745. The cubic root of 30724741 is about 313.2055219122.

The spelling of 30724741 in words is "thirty million, seven hundred twenty-four thousand, seven hundred forty-one".