100626728 has 8 divisors (see below), whose sum is σ = 188675130. Its totient is φ = 50313360.

The previous prime is 100626649. The next prime is 100626749. The reversal of 100626728 is 827626001.

It can be written as a sum of positive squares in only one way, i.e., 52157284 + 48469444 = 7222^2 + 6962^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 100626694 and 100626703.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6289163 + ... + 6289178.

Almost surely, 2^100626728 is an apocalyptic number.

It is an amenable number.

100626728 is a deficient number, since it is larger than the sum of its proper divisors (88048402).

100626728 is a wasteful number, since it uses less digits than its factorization.

100626728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12578347 (or 12578343 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 100626728 is about 10031.2874547587. The cubic root of 100626728 is about 465.1265358803.

The spelling of 100626728 in words is "one hundred million, six hundred twenty-six thousand, seven hundred twenty-eight".