30980693 has 2 divisors, whose sum is σ = 30980694. Its totient is φ = 30980692.

The previous prime is 30980641. The next prime is 30980759. The reversal of 30980693 is 39608903.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30547729 + 432964 = 5527^2 + 658^2 .

It is a cyclic number.

It is not a de Polignac number, because 30980693 - 2⁶ = 30980629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30980603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15490346 + 15490347.

It is an arithmetic number, because the mean of its divisors is an integer number (15490347).

Almost surely, 2^30980693 is an apocalyptic number.

It is an amenable number.

30980693 is a deficient number, since it is larger than the sum of its proper divisors (1).

30980693 is an equidigital number, since it uses as much as digits as its factorization.

30980693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 30980693 is about 5566.0302730043. The cubic root of 30980693 is about 314.0728359576.

The spelling of 30980693 in words is "thirty million, nine hundred eighty thousand, six hundred ninety-three".