31980097 has 8 divisors (see below), whose sum is σ = 35127360. Its totient is φ = 28979280.

The previous prime is 31980083. The next prime is 31980101. The reversal of 31980097 is 79008913.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31980097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31980007) 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, 36154 + ... + 37027.

It is an arithmetic number, because the mean of its divisors is an integer number (4390920).

Almost surely, 2^31980097 is an apocalyptic number.

It is an amenable number.

31980097 is a deficient number, since it is larger than the sum of its proper divisors (3147263).

31980097 is a wasteful number, since it uses less digits than its factorization.

31980097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73223.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 31980097 is about 5655.0947825832. The cubic root of 31980097 is about 317.4143758195.

The spelling of 31980097 in words is "thirty-one million, nine hundred eighty thousand, ninety-seven".