80781441 has 8 divisors (see below), whose sum is σ = 115993920. Its totient is φ = 49711632.

The previous prime is 80781409. The next prime is 80781511. The reversal of 80781441 is 14418708.

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

It is not a de Polignac number, because 80781441 - 2⁵ = 80781409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80781241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1035621 + ... + 1035698.

It is an arithmetic number, because the mean of its divisors is an integer number (14499240).

Almost surely, 2^80781441 is an apocalyptic number.

It is an amenable number.

80781441 is a deficient number, since it is larger than the sum of its proper divisors (35212479).

80781441 is a wasteful number, since it uses less digits than its factorization.

80781441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071335.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 80781441 is about 8987.8496315860. The cubic root of 80781441 is about 432.2853642260.

The spelling of 80781441 in words is "eighty million, seven hundred eighty-one thousand, four hundred forty-one".