190796857 has 4 divisors (see below), whose sum is σ = 190824676. Its totient is φ = 190769040.

The previous prime is 190796849. The next prime is 190796861. The reversal of 190796857 is 758697091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 77246521 + 113550336 = 8789^2 + 10656^2 .

It is a cyclic number.

It is not a de Polignac number, because 190796857 - 2³ = 190796849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190796867) 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, 4507 + ... + 20047.

It is an arithmetic number, because the mean of its divisors is an integer number (47706169).

Almost surely, 2^190796857 is an apocalyptic number.

It is an amenable number.

190796857 is a deficient number, since it is larger than the sum of its proper divisors (27819).

190796857 is a wasteful number, since it uses less digits than its factorization.

190796857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27818.

The product of its (nonzero) digits is 952560, while the sum is 52.

The square root of 190796857 is about 13812.9235500672. The cubic root of 190796857 is about 575.6922797327.

The spelling of 190796857 in words is "one hundred ninety million, seven hundred ninety-six thousand, eight hundred fifty-seven".