30699427 has 4 divisors (see below), whose sum is σ = 33490296. Its totient is φ = 27908560.

The previous prime is 30699419. The next prime is 30699439. The reversal of 30699427 is 72499603.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30699427 - 2³ = 30699419 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30699427.

It is not an unprimeable number, because it can be changed into a prime (30699407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395418 + ... + 1395439.

It is an arithmetic number, because the mean of its divisors is an integer number (8372574).

Almost surely, 2^30699427 is an apocalyptic number.

30699427 is a deficient number, since it is larger than the sum of its proper divisors (2790869).

30699427 is a wasteful number, since it uses less digits than its factorization.

30699427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790868.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 30699427 is about 5540.7063629108. The cubic root of 30699427 is about 313.1194819898.

The spelling of 30699427 in words is "thirty million, six hundred ninety-nine thousand, four hundred twenty-seven".