30973397 has 16 divisors (see below), whose sum is σ = 38489472. Its totient is φ = 24269760.

The previous prime is 30973379. The next prime is 30973399. The reversal of 30973397 is 79337903.

It is a cyclic number.

It is not a de Polignac number, because 30973397 - 2¹⁴ = 30957013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30973399) 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, 8147 + ... + 11327.

It is an arithmetic number, because the mean of its divisors is an integer number (2405592).

Almost surely, 2^30973397 is an apocalyptic number.

It is an amenable number.

30973397 is a deficient number, since it is larger than the sum of its proper divisors (7516075).

30973397 is a wasteful number, since it uses less digits than its factorization.

30973397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308.

The product of its (nonzero) digits is 107163, while the sum is 41.

The square root of 30973397 is about 5565.3748301440. The cubic root of 30973397 is about 314.0481791462.

The spelling of 30973397 in words is "thirty million, nine hundred seventy-three thousand, three hundred ninety-seven".