102604859 has 4 divisors (see below), whose sum is σ = 117262704. Its totient is φ = 87947016.

The previous prime is 102604847. The next prime is 102604891. The reversal of 102604859 is 958406201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102604859 - 2¹⁶ = 102539323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102604819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7328912 + ... + 7328925.

It is an arithmetic number, because the mean of its divisors is an integer number (29315676).

Almost surely, 2^102604859 is an apocalyptic number.

102604859 is a deficient number, since it is larger than the sum of its proper divisors (14657845).

102604859 is an equidigital number, since it uses as much as digits as its factorization.

102604859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14657844.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 102604859 is about 10129.4056587739. The cubic root of 102604859 is about 468.1546153731.

The spelling of 102604859 in words is "one hundred two million, six hundred four thousand, eight hundred fifty-nine".