48320991 has 6 divisors (see below), whose sum is σ = 69797000. Its totient is φ = 32213988.

The previous prime is 48320983. The next prime is 48321011. The reversal of 48320991 is 19902384.

It is not a de Polignac number, because 48320991 - 2³ = 48320983 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 (48320491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2684491 + ... + 2684508.

Almost surely, 2^48320991 is an apocalyptic number.

48320991 is a deficient number, since it is larger than the sum of its proper divisors (21476009).

48320991 is a wasteful number, since it uses less digits than its factorization.

48320991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5369005 (or 5369002 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 48320991 is about 6951.3301604801. The cubic root of 48320991 is about 364.2324296425.

The spelling of 48320991 in words is "forty-eight million, three hundred twenty thousand, nine hundred ninety-one".