30797871 has 8 divisors (see below), whose sum is σ = 44222640. Its totient is φ = 18952512.

The previous prime is 30797867. The next prime is 30797887. The reversal of 30797871 is 17879703.

It is a happy number.

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

It is not a de Polignac number, because 30797871 - 2² = 30797867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30797891) 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, 394806 + ... + 394883.

It is an arithmetic number, because the mean of its divisors is an integer number (5527830).

Almost surely, 2^30797871 is an apocalyptic number.

30797871 is a deficient number, since it is larger than the sum of its proper divisors (13424769).

30797871 is a wasteful number, since it uses less digits than its factorization.

30797871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789705.

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 30797871 is about 5549.5829573041. The cubic root of 30797871 is about 313.4538187865.

The spelling of 30797871 in words is "thirty million, seven hundred ninety-seven thousand, eight hundred seventy-one".