30723419 has 2 divisors, whose sum is σ = 30723420. Its totient is φ = 30723418.

The previous prime is 30723409. The next prime is 30723421. The reversal of 30723419 is 91432703.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30723419 - 2²⁴ = 13946203 is a prime.

It is a super-2 number, since 2×30723419² = 1887856950099122, which contains 22 as substring.

Together with 30723421, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30723391 and 30723400.

It is not a weakly prime, because it can be changed into another prime (30723409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15361709 + 15361710.

It is an arithmetic number, because the mean of its divisors is an integer number (15361710).

Almost surely, 2^30723419 is an apocalyptic number.

30723419 is a deficient number, since it is larger than the sum of its proper divisors (1).

30723419 is an equidigital number, since it uses as much as digits as its factorization.

30723419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 30723419 is about 5542.8710069782. The cubic root of 30723419 is about 313.2010297275.

The spelling of 30723419 in words is "thirty million, seven hundred twenty-three thousand, four hundred nineteen".