102028907 has 2 divisors, whose sum is σ = 102028908. Its totient is φ = 102028906.

The previous prime is 102028903. The next prime is 102028909. The reversal of 102028907 is 709820201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102028907 - 2² = 102028903 is a prime.

It is a super-2 number, since 2×102028907² = 20819795727229298, which contains 22 as substring.

Together with 102028909, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102028907.

It is not a weakly prime, because it can be changed into another prime (102028903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51014453 + 51014454.

It is an arithmetic number, because the mean of its divisors is an integer number (51014454).

Almost surely, 2^102028907 is an apocalyptic number.

102028907 is a deficient number, since it is larger than the sum of its proper divisors (1).

102028907 is an equidigital number, since it uses as much as digits as its factorization.

102028907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 102028907 is about 10100.9359467329. The cubic root of 102028907 is about 467.2770069040.

The spelling of 102028907 in words is "one hundred two million, twenty-eight thousand, nine hundred seven".