30872419 has 2 divisors, whose sum is σ = 30872420. Its totient is φ = 30872418.

The previous prime is 30872411. The next prime is 30872437. The reversal of 30872419 is 91427803.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30872419 - 2³ = 30872411 is a prime.

It is a super-2 number, since 2×30872419² = 1906212509823122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30872411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15436209 + 15436210.

It is an arithmetic number, because the mean of its divisors is an integer number (15436210).

Almost surely, 2^30872419 is an apocalyptic number.

30872419 is a deficient number, since it is larger than the sum of its proper divisors (1).

30872419 is an equidigital number, since it uses as much as digits as its factorization.

30872419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 30872419 is about 5556.2954385094. The cubic root of 30872419 is about 313.7065259362.

It can be divided in two parts, 308 and 72419, that added together give a palindrome (72727).

The spelling of 30872419 in words is "thirty million, eight hundred seventy-two thousand, four hundred nineteen".