30807493 has 8 divisors (see below), whose sum is σ = 32572800. Its totient is φ = 29056608.

The previous prime is 30807487. The next prime is 30807509. The reversal of 30807493 is 39470803.

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

It is a cyclic number.

It is not a de Polignac number, because 30807493 - 2⁵ = 30807461 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 (30807443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948 + ... + 7906.

It is an arithmetic number, because the mean of its divisors is an integer number (4071600).

Almost surely, 2^30807493 is an apocalyptic number.

It is an amenable number.

30807493 is a deficient number, since it is larger than the sum of its proper divisors (1765307).

30807493 is a wasteful number, since it uses less digits than its factorization.

30807493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7211.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 30807493 is about 5550.4498015927. The cubic root of 30807493 is about 313.4864589064.

The spelling of 30807493 in words is "thirty million, eight hundred seven thousand, four hundred ninety-three".