30734845 has 4 divisors (see below), whose sum is σ = 36881820. Its totient is φ = 24587872.

The previous prime is 30734813. The next prime is 30734863. The reversal of 30734845 is 54843703.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13111641 + 17623204 = 3621^2 + 4198^2 .

It is a cyclic number.

It is not a de Polignac number, because 30734845 - 2⁵ = 30734813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30734845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3073480 + ... + 3073489.

It is an arithmetic number, because the mean of its divisors is an integer number (9220455).

Almost surely, 2^30734845 is an apocalyptic number.

It is an amenable number.

30734845 is a deficient number, since it is larger than the sum of its proper divisors (6146975).

30734845 is an equidigital number, since it uses as much as digits as its factorization.

30734845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6146974.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 30734845 is about 5543.9016044659. The cubic root of 30734845 is about 313.2398512687.

The spelling of 30734845 in words is "thirty million, seven hundred thirty-four thousand, eight hundred forty-five".