102428329 has 4 divisors (see below), whose sum is σ = 102488320. Its totient is φ = 102368340.

The previous prime is 102428323. The next prime is 102428341. The reversal of 102428329 is 923824201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102428329 - 2⁷ = 102428201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102428329.

It is not an unprimeable number, because it can be changed into a prime (102428323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27357 + ... + 30874.

It is an arithmetic number, because the mean of its divisors is an integer number (25622080).

Almost surely, 2^102428329 is an apocalyptic number.

It is an amenable number.

102428329 is a deficient number, since it is larger than the sum of its proper divisors (59991).

102428329 is an equidigital number, since it uses as much as digits as its factorization.

102428329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59990.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 102428329 is about 10120.6881683016. The cubic root of 102428329 is about 467.8859771041.

The spelling of 102428329 in words is "one hundred two million, four hundred twenty-eight thousand, three hundred twenty-nine".