801483781 has 4 divisors (see below), whose sum is σ = 915981472. Its totient is φ = 686986092.

The previous prime is 801483779. The next prime is 801483797. The reversal of 801483781 is 187384108.

801483781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 801483781 - 2¹ = 801483779 is a prime.

It is a super-2 number, since 2×801483781² = 1284752502412111922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801483281) 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, 57248835 + ... + 57248848.

It is an arithmetic number, because the mean of its divisors is an integer number (228995368).

Almost surely, 2^801483781 is an apocalyptic number.

It is an amenable number.

801483781 is a deficient number, since it is larger than the sum of its proper divisors (114497691).

801483781 is a wasteful number, since it uses less digits than its factorization.

801483781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114497690.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 801483781 is about 28310.4888866300. The cubic root of 801483781 is about 928.8913373732.

The spelling of 801483781 in words is "eight hundred one million, four hundred eighty-three thousand, seven hundred eighty-one".