30893005 has 16 divisors (see below), whose sum is σ = 43553664. Its totient is φ = 20738880.

The previous prime is 30893003. The next prime is 30893017. The reversal of 30893005 is 50039803.

It is a happy number.

It is not a de Polignac number, because 30893005 - 2¹ = 30893003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30893003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20889 + ... + 22318.

It is an arithmetic number, because the mean of its divisors is an integer number (2722104).

Almost surely, 2^30893005 is an apocalyptic number.

It is an amenable number.

30893005 is a deficient number, since it is larger than the sum of its proper divisors (12660659).

30893005 is a wasteful number, since it uses less digits than its factorization.

30893005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43236.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 30893005 is about 5558.1476230845. The cubic root of 30893005 is about 313.7762378654.

The spelling of 30893005 in words is "thirty million, eight hundred ninety-three thousand, five".