801478001 has 4 divisors (see below), whose sum is σ = 803856612. Its totient is φ = 799099392.

The previous prime is 801477991. The next prime is 801478063. The reversal of 801478001 is 100874108.

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

It can be written as a sum of positive squares in 2 ways, for example, as 92640625 + 708837376 = 9625^2 + 26624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801478001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801478081) 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 in 3 ways as a sum of consecutive naturals, for example, 1188800 + ... + 1189473.

It is an arithmetic number, because the mean of its divisors is an integer number (200964153).

Almost surely, 2^801478001 is an apocalyptic number.

It is an amenable number.

801478001 is a deficient number, since it is larger than the sum of its proper divisors (2378611).

801478001 is a wasteful number, since it uses less digits than its factorization.

801478001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378610.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 801478001 is about 28310.3868041396. The cubic root of 801478001 is about 928.8891044293.

The spelling of 801478001 in words is "eight hundred one million, four hundred seventy-eight thousand, one".