801941505 has 16 divisors (see below), whose sum is σ = 1283509824. Its totient is φ = 427567680.

The previous prime is 801941501. The next prime is 801941507. The reversal of 801941505 is 505149108.

It is not a de Polignac number, because 801941505 - 2² = 801941501 is a prime.

It is a super-2 number, since 2×801941505² = 1286220354883330050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (801941501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57642 + ... + 70188.

It is an arithmetic number, because the mean of its divisors is an integer number (80219364).

Almost surely, 2^801941505 is an apocalyptic number.

It is an amenable number.

801941505 is a deficient number, since it is larger than the sum of its proper divisors (481568319).

801941505 is a wasteful number, since it uses less digits than its factorization.

801941505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16816.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 801941505 is about 28318.5717330518. The cubic root of 801941505 is about 929.0681323608.

The spelling of 801941505 in words is "eight hundred one million, nine hundred forty-one thousand, five hundred five".