30684423 has 16 divisors (see below), whose sum is σ = 51008256. Its totient is φ = 15939840.

The previous prime is 30684419. The next prime is 30684427. The reversal of 30684423 is 32448603.

It is an interprime number because it is at equal distance from previous prime (30684419) and next prime (30684427).

It is not a de Polignac number, because 30684423 - 2² = 30684419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30684427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66186 + ... + 66647.

It is an arithmetic number, because the mean of its divisors is an integer number (3188016).

Almost surely, 2^30684423 is an apocalyptic number.

30684423 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

30684423 is a deficient number, since it is larger than the sum of its proper divisors (20323833).

30684423 is a wasteful number, since it uses less digits than its factorization.

30684423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132854.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 30684423 is about 5539.3522184458. The cubic root of 30684423 is about 313.0684624677.

The spelling of 30684423 in words is "thirty million, six hundred eighty-four thousand, four hundred twenty-three".