2085905397 has 8 divisors (see below), whose sum is σ = 2902129344. Its totient is φ = 1330142528.

The previous prime is 2085905387. The next prime is 2085905407. The reversal of 2085905397 is 7935095802.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2085905387) and next prime (2085905407).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2085905397 - 2⁶ = 2085905333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085905387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15115188 + ... + 15115325.

It is an arithmetic number, because the mean of its divisors is an integer number (362766168).

Almost surely, 2^2085905397 is an apocalyptic number.

It is an amenable number.

2085905397 is a deficient number, since it is larger than the sum of its proper divisors (816223947).

2085905397 is a wasteful number, since it uses less digits than its factorization.

2085905397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30230539.

The product of its (nonzero) digits is 680400, while the sum is 48.

The square root of 2085905397 is about 45671.7133136036. The cubic root of 2085905397 is about 1277.7077702772.

The spelling of 2085905397 in words is "two billion, eighty-five million, nine hundred five thousand, three hundred ninety-seven".