31489082 has 4 divisors (see below), whose sum is σ = 47233626. Its totient is φ = 15744540.

The previous prime is 31489079. The next prime is 31489091. The reversal of 31489082 is 28098413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20802721 + 10686361 = 4561^2 + 3269^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7872269 + ... + 7872272.

Almost surely, 2^31489082 is an apocalyptic number.

31489082 is a deficient number, since it is larger than the sum of its proper divisors (15744544).

31489082 is a wasteful number, since it uses less digits than its factorization.

31489082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15744543.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 31489082 is about 5611.5133431188. The cubic root of 31489082 is about 315.7814878283.

The spelling of 31489082 in words is "thirty-one million, four hundred eighty-nine thousand, eighty-two".