2085417929 has 4 divisors (see below), whose sum is σ = 2383334784. Its totient is φ = 1787501076.

The previous prime is 2085417907. The next prime is 2085417959. The reversal of 2085417929 is 9297145802.

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 2085417929 - 2¹⁶ = 2085352393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2085417959) 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, 148958417 + ... + 148958430.

It is an arithmetic number, because the mean of its divisors is an integer number (595833696).

Almost surely, 2^2085417929 is an apocalyptic number.

It is an amenable number.

2085417929 is a deficient number, since it is larger than the sum of its proper divisors (297916855).

2085417929 is an equidigital number, since it uses as much as digits as its factorization.

2085417929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297916854.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 2085417929 is about 45666.3763506587. The cubic root of 2085417929 is about 1277.6082307396.

It can be divided in two parts, 20854 and 17929, that added together give a palindrome (38783).

The spelling of 2085417929 in words is "two billion, eighty-five million, four hundred seventeen thousand, nine hundred twenty-nine".