190828117 has 2 divisors, whose sum is σ = 190828118. Its totient is φ = 190828116.

The previous prime is 190828097. The next prime is 190828123. The reversal of 190828117 is 711828091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190826596 + 1521 = 13814^2 + 39^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190828117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190823117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95414058 + 95414059.

It is an arithmetic number, because the mean of its divisors is an integer number (95414059).

Almost surely, 2^190828117 is an apocalyptic number.

It is an amenable number.

190828117 is a deficient number, since it is larger than the sum of its proper divisors (1).

190828117 is an equidigital number, since it uses as much as digits as its factorization.

190828117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 37.

The square root of 190828117 is about 13814.0550527352. The cubic root of 190828117 is about 575.7237183322.

The spelling of 190828117 in words is "one hundred ninety million, eight hundred twenty-eight thousand, one hundred seventeen".