1924021117 has 2 divisors, whose sum is σ = 1924021118. Its totient is φ = 1924021116.

The previous prime is 1924021109. The next prime is 1924021123. The reversal of 1924021117 is 7111204291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1922910201 + 1110916 = 43851^2 + 1054^2 .

It is a cyclic number.

It is not a de Polignac number, because 1924021117 - 2³ = 1924021109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1924021147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962010558 + 962010559.

It is an arithmetic number, because the mean of its divisors is an integer number (962010559).

Almost surely, 2^1924021117 is an apocalyptic number.

It is an amenable number.

1924021117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1924021117 is an equidigital number, since it uses as much as digits as its factorization.

1924021117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1924021117 is about 43863.6651113424. The cubic root of 1924021117 is about 1243.7600741185.

The spelling of 1924021117 in words is "one billion, nine hundred twenty-four million, twenty-one thousand, one hundred seventeen".