30973897 has 8 divisors (see below), whose sum is σ = 31306752. Its totient is φ = 30643200.

The previous prime is 30973883. The next prime is 30973907. The reversal of 30973897 is 79837903.

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 30973897 - 2¹⁵ = 30941129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30973297) 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, 48772 + ... + 49402.

It is an arithmetic number, because the mean of its divisors is an integer number (3913344).

Almost surely, 2^30973897 is an apocalyptic number.

It is an amenable number.

30973897 is a deficient number, since it is larger than the sum of its proper divisors (332855).

30973897 is a wasteful number, since it uses less digits than its factorization.

30973897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 30973897 is about 5565.4197505669. The cubic root of 30973897 is about 314.0498690183.

The spelling of 30973897 in words is "thirty million, nine hundred seventy-three thousand, eight hundred ninety-seven".