28631037 has 8 divisors (see below), whose sum is σ = 38987136. Its totient is φ = 18681152.

The previous prime is 28631023. The next prime is 28631059. The reversal of 28631037 is 73013682.

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 28631037 - 2¹¹ = 28628989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28630995 and 28631013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28631017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101388 + ... + 101669.

It is an arithmetic number, because the mean of its divisors is an integer number (4873392).

Almost surely, 2^28631037 is an apocalyptic number.

It is an amenable number.

28631037 is a deficient number, since it is larger than the sum of its proper divisors (10356099).

28631037 is a wasteful number, since it uses less digits than its factorization.

28631037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203107.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 28631037 is about 5350.7977909841. The cubic root of 28631037 is about 305.9231619623.

The spelling of 28631037 in words is "twenty-eight million, six hundred thirty-one thousand, thirty-seven".