819850097 has 16 divisors (see below), whose sum is σ = 926916480. Its totient is φ = 718300800.

The previous prime is 819850091. The next prime is 819850103. The reversal of 819850097 is 790058918.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (819850091) and next prime (819850103).

It is a cyclic number.

It is not a de Polignac number, because 819850097 - 2⁴ = 819850081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (819850091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199253 + ... + 203325.

It is an arithmetic number, because the mean of its divisors is an integer number (57932280).

Almost surely, 2^819850097 is an apocalyptic number.

It is an amenable number.

819850097 is a deficient number, since it is larger than the sum of its proper divisors (107066383).

819850097 is a wasteful number, since it uses less digits than its factorization.

819850097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 819850097 is about 28633.0245870044. The cubic root of 819850097 is about 935.9331231743.

The spelling of 819850097 in words is "eight hundred nineteen million, eight hundred fifty thousand, ninety-seven".