30039897 has 8 divisors (see below), whose sum is σ = 40078944. Its totient is φ = 20013728.

The previous prime is 30039883. The next prime is 30039913. The reversal of 30039897 is 79893003.

It is a happy number.

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 30039897 - 2⁷ = 30039769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30039397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5998 + ... + 9800.

It is an arithmetic number, because the mean of its divisors is an integer number (5009868).

Almost surely, 2^30039897 is an apocalyptic number.

It is an amenable number.

30039897 is a deficient number, since it is larger than the sum of its proper divisors (10039047).

30039897 is a wasteful number, since it uses less digits than its factorization.

30039897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6439.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 30039897 is about 5480.8664461014. The cubic root of 30039897 is about 310.8609331957.

The spelling of 30039897 in words is "thirty million, thirty-nine thousand, eight hundred ninety-seven".