30671413 has 4 divisors (see below), whose sum is σ = 30689100. Its totient is φ = 30653728.

The previous prime is 30671411. The next prime is 30671419. The reversal of 30671413 is 31417603.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26440164 + 4231249 = 5142^2 + 2057^2 .

It is a cyclic number.

It is not a de Polignac number, because 30671413 - 2¹ = 30671411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30671411) 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, 5920 + ... + 9817.

It is an arithmetic number, because the mean of its divisors is an integer number (7672275).

Almost surely, 2^30671413 is an apocalyptic number.

It is an amenable number.

30671413 is a deficient number, since it is larger than the sum of its proper divisors (17687).

30671413 is a wasteful number, since it uses less digits than its factorization.

30671413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17686.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 30671413 is about 5538.1777689056. The cubic root of 30671413 is about 313.0242098678.

The spelling of 30671413 in words is "thirty million, six hundred seventy-one thousand, four hundred thirteen".