801929873 has 2 divisors, whose sum is σ = 801929874. Its totient is φ = 801929872.

The previous prime is 801929761. The next prime is 801929879. The reversal of 801929873 is 378929108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 691847809 + 110082064 = 26303^2 + 10492^2 .

It is a cyclic number.

It is not a de Polignac number, because 801929873 - 2⁸ = 801929617 is a prime.

It is a super-2 number, since 2×801929873² = 1286183042419592258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (801929879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400964936 + 400964937.

It is an arithmetic number, because the mean of its divisors is an integer number (400964937).

Almost surely, 2^801929873 is an apocalyptic number.

It is an amenable number.

801929873 is a deficient number, since it is larger than the sum of its proper divisors (1).

801929873 is an equidigital number, since it uses as much as digits as its factorization.

801929873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 801929873 is about 28318.3663547176. The cubic root of 801929873 is about 929.0636403570.

The spelling of 801929873 in words is "eight hundred one million, nine hundred twenty-nine thousand, eight hundred seventy-three".