102628637 has 2 divisors, whose sum is σ = 102628638. Its totient is φ = 102628636.

The previous prime is 102628627. The next prime is 102628679. The reversal of 102628637 is 736826201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100420441 + 2208196 = 10021^2 + 1486^2 .

It is a cyclic number.

It is not a de Polignac number, because 102628637 - 2⁴ = 102628621 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 102628597 and 102628606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102628627) 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 as a sum of consecutive naturals, namely, 51314318 + 51314319.

It is an arithmetic number, because the mean of its divisors is an integer number (51314319).

Almost surely, 2^102628637 is an apocalyptic number.

It is an amenable number.

102628637 is a deficient number, since it is larger than the sum of its proper divisors (1).

102628637 is an equidigital number, since it uses as much as digits as its factorization.

102628637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 102628637 is about 10130.5793022907. The cubic root of 102628637 is about 468.1907764956.

The spelling of 102628637 in words is "one hundred two million, six hundred twenty-eight thousand, six hundred thirty-seven".