30706705 has 4 divisors (see below), whose sum is σ = 36848052. Its totient is φ = 24565360.

The previous prime is 30706699. The next prime is 30706723. The reversal of 30706705 is 50760703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50760703 = 7 ⋅7251529.

It can be written as a sum of positive squares in 2 ways, for example, as 5022081 + 25684624 = 2241^2 + 5068^2 .

It is not a de Polignac number, because 30706705 - 2¹¹ = 30704657 is a prime.

It is a Duffinian 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, 3070666 + ... + 3070675.

It is an arithmetic number, because the mean of its divisors is an integer number (9212013).

Almost surely, 2^30706705 is an apocalyptic number.

It is an amenable number.

30706705 is a deficient number, since it is larger than the sum of its proper divisors (6141347).

30706705 is an equidigital number, since it uses as much as digits as its factorization.

30706705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6141346.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 30706705 is about 5541.3630994549. The cubic root of 30706705 is about 313.1442240751.

The spelling of 30706705 in words is "thirty million, seven hundred six thousand, seven hundred five".