30800247 has 4 divisors (see below), whose sum is σ = 41067000. Its totient is φ = 20533496.

The previous prime is 30800219. The next prime is 30800251. The reversal of 30800247 is 74200803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74200803 = 3 ⋅24733601.

It is a cyclic number.

It is not a de Polignac number, because 30800247 - 2¹¹ = 30798199 is a prime.

It is a super-2 number, since 2×30800247² = 1897310430522018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30800207) 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, 5133372 + ... + 5133377.

It is an arithmetic number, because the mean of its divisors is an integer number (10266750).

Almost surely, 2^30800247 is an apocalyptic number.

30800247 is a deficient number, since it is larger than the sum of its proper divisors (10266753).

30800247 is a wasteful number, since it uses less digits than its factorization.

30800247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10266752.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 30800247 is about 5549.7970233154. The cubic root of 30800247 is about 313.4618793775.

The spelling of 30800247 in words is "thirty million, eight hundred thousand, two hundred forty-seven".