806520374 has 8 divisors (see below), whose sum is σ = 1319760648. Its totient is φ = 366600160.

The previous prime is 806520361. The next prime is 806520391. The reversal of 806520374 is 473025608.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×806520374² = 1300950227354199752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18329987 + ... + 18330030.

It is an arithmetic number, because the mean of its divisors is an integer number (164970081).

Almost surely, 2^806520374 is an apocalyptic number.

806520374 is a deficient number, since it is larger than the sum of its proper divisors (513240274).

806520374 is a wasteful number, since it uses less digits than its factorization.

806520374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36660030.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 806520374 is about 28399.3023505860. The cubic root of 806520374 is about 930.8330201480.

The spelling of 806520374 in words is "eight hundred six million, five hundred twenty thousand, three hundred seventy-four".