105387028 has 6 divisors (see below), whose sum is σ = 184427306. Its totient is φ = 52693512.

The previous prime is 105386999. The next prime is 105387041. The reversal of 105387028 is 820783501.

It can be written as a sum of positive squares in only one way, i.e., 88887184 + 16499844 = 9428^2 + 4062^2 .

It is a super-2 number, since 2×105387028² = 22212851341345568, which contains 22 as substring.

It is a zygodrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 105386984 and 105387002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13173375 + ... + 13173382.

Almost surely, 2^105387028 is an apocalyptic number.

It is an amenable number.

105387028 is a deficient number, since it is larger than the sum of its proper divisors (79040278).

105387028 is a wasteful number, since it uses less digits than its factorization.

105387028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26346761 (or 26346759 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 105387028 is about 10265.8184281625. The cubic root of 105387028 is about 472.3483316388.

The spelling of 105387028 in words is "one hundred five million, three hundred eighty-seven thousand, twenty-eight".