30716421 has 8 divisors (see below), whose sum is σ = 41954304. Its totient is φ = 19978080.

The previous prime is 30716377. The next prime is 30716459. The reversal of 30716421 is 12461703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30716421 - 2¹⁴ = 30700037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30716391 and 30716400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30716461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124741 + ... + 124986.

It is an arithmetic number, because the mean of its divisors is an integer number (5244288).

Almost surely, 2^30716421 is an apocalyptic number.

It is an amenable number.

30716421 is a deficient number, since it is larger than the sum of its proper divisors (11237883).

30716421 is a wasteful number, since it uses less digits than its factorization.

30716421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249771.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 30716421 is about 5542.2397097202. The cubic root of 30716421 is about 313.1772482245.

The spelling of 30716421 in words is "thirty million, seven hundred sixteen thousand, four hundred twenty-one".