805942015 has 4 divisors (see below), whose sum is σ = 967130424. Its totient is φ = 644753608.

The previous prime is 805942013. The next prime is 805942037. The reversal of 805942015 is 510249508.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 805942015 - 2¹ = 805942013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805942013) 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, 80594197 + ... + 80594206.

It is an arithmetic number, because the mean of its divisors is an integer number (241782606).

Almost surely, 2^805942015 is an apocalyptic number.

805942015 is a deficient number, since it is larger than the sum of its proper divisors (161188409).

805942015 is a wasteful number, since it uses less digits than its factorization.

805942015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161188408.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 805942015 is about 28389.1178975325. The cubic root of 805942015 is about 930.6104655753.

The spelling of 805942015 in words is "eight hundred five million, nine hundred forty-two thousand, fifteen".