30634493 has 4 divisors (see below), whose sum is σ = 32436540. Its totient is φ = 28832448.

The previous prime is 30634489. The next prime is 30634501. The reversal of 30634493 is 39443603.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39443603 = 193 ⋅204371.

It can be written as a sum of positive squares in 2 ways, for example, as 20052484 + 10582009 = 4478^2 + 3253^2 .

It is a cyclic number.

It is not a de Polignac number, because 30634493 - 2² = 30634489 is a prime.

It is a super-2 number, since 2×30634493² = 1876944322734098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30634453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900998 + ... + 901031.

It is an arithmetic number, because the mean of its divisors is an integer number (8109135).

Almost surely, 2^30634493 is an apocalyptic number.

It is an amenable number.

30634493 is a deficient number, since it is larger than the sum of its proper divisors (1802047).

30634493 is a wasteful number, since it uses less digits than its factorization.

30634493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802046.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 30634493 is about 5534.8435388907. The cubic root of 30634493 is about 312.8985609014.

The spelling of 30634493 in words is "thirty million, six hundred thirty-four thousand, four hundred ninety-three".