28952031 has 8 divisors (see below), whose sum is σ = 38651184. Its totient is φ = 19277120.

The previous prime is 28952023. The next prime is 28952051. The reversal of 28952031 is 13025982.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28952031 - 2³ = 28952023 is a prime.

It is a super-2 number, since 2×28952031² = 1676440198049922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28952031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28952051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3060 + ... + 8201.

It is an arithmetic number, because the mean of its divisors is an integer number (4831398).

Almost surely, 2^28952031 is an apocalyptic number.

28952031 is a deficient number, since it is larger than the sum of its proper divisors (9699153).

28952031 is a wasteful number, since it uses less digits than its factorization.

28952031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 28952031 is about 5380.7091540056. The cubic root of 28952031 is about 307.0621914204.

The spelling of 28952031 in words is "twenty-eight million, nine hundred fifty-two thousand, thirty-one".