30871004 has 6 divisors (see below), whose sum is σ = 54024264. Its totient is φ = 15435500.

The previous prime is 30870989. The next prime is 30871007. The reversal of 30871004 is 40017803.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30871007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3858872 + ... + 3858879.

It is an arithmetic number, because the mean of its divisors is an integer number (9004044).

Almost surely, 2^30871004 is an apocalyptic number.

It is an amenable number.

30871004 is a deficient number, since it is larger than the sum of its proper divisors (23153260).

30871004 is a wasteful number, since it uses less digits than its factorization.

30871004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7717755 (or 7717753 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 30871004 is about 5556.1681040084. The cubic root of 30871004 is about 313.7017330765.

Adding to 30871004 its reverse (40017803), we get a palindrome (70888807).

The spelling of 30871004 in words is "thirty million, eight hundred seventy-one thousand, four".