8480991 has 4 divisors (see below), whose sum is σ = 11307992. Its totient is φ = 5653992.

The previous prime is 8480987. The next prime is 8481059. The reversal of 8480991 is 1990848.

8480991 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8480991 - 2² = 8480987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8480911) 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, 1413496 + ... + 1413501.

It is an arithmetic number, because the mean of its divisors is an integer number (2826998).

Almost surely, 2^8480991 is an apocalyptic number.

8480991 is a deficient number, since it is larger than the sum of its proper divisors (2827001).

8480991 is a wasteful number, since it uses less digits than its factorization.

8480991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827000.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 8480991 is about 2912.2141061399. The cubic root of 8480991 is about 203.9305078567.

The spelling of 8480991 in words is "eight million, four hundred eighty thousand, nine hundred ninety-one".