31797002 has 8 divisors (see below), whose sum is σ = 47846916. Its totient is φ = 15848032.

The previous prime is 31797001. The next prime is 31797011. The reversal of 31797002 is 20079713.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29691601 + 2105401 = 5449^2 + 1451^2 .

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

It is a super-2 number, since 2×31797002² = 2022098672376008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31797001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24443 + ... + 25710.

Almost surely, 2^31797002 is an apocalyptic number.

31797002 is a deficient number, since it is larger than the sum of its proper divisors (16049914).

31797002 is a wasteful number, since it uses less digits than its factorization.

31797002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50472.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 31797002 is about 5638.8830454266. The cubic root of 31797002 is about 316.8074540491.

The spelling of 31797002 in words is "thirty-one million, seven hundred ninety-seven thousand, two".