30880819 has 2 divisors, whose sum is σ = 30880820. Its totient is φ = 30880818.

The previous prime is 30880813. The next prime is 30880841. The reversal of 30880819 is 91808803.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30880819 - 2¹⁹ = 30356531 is a prime.

It is a super-2 number, since 2×30880819² = 1907249964221522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30880813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15440409 + 15440410.

It is an arithmetic number, because the mean of its divisors is an integer number (15440410).

Almost surely, 2^30880819 is an apocalyptic number.

30880819 is a deficient number, since it is larger than the sum of its proper divisors (1).

30880819 is an equidigital number, since it uses as much as digits as its factorization.

30880819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 30880819 is about 5557.0512864288. The cubic root of 30880819 is about 313.7349752333.

The spelling of 30880819 in words is "thirty million, eight hundred eighty thousand, eight hundred nineteen".