4806491997 has 8 divisors (see below), whose sum is σ = 6745953760. Its totient is φ = 3035679120.

The previous prime is 4806491983. The next prime is 4806492001. The reversal of 4806491997 is 7991946084.

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

It is not a de Polignac number, because 4806491997 - 2⁸ = 4806491741 is a prime.

It is a super-3 number, since 3×4806491997³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 84324421 = 4806491997 / (4 + 8 + 0 + 6 + 4 + 9 + 1 + 9 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4806491927) 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, 42162154 + ... + 42162267.

It is an arithmetic number, because the mean of its divisors is an integer number (843244220).

Almost surely, 2^4806491997 is an apocalyptic number.

It is an amenable number.

4806491997 is a deficient number, since it is larger than the sum of its proper divisors (1939461763).

4806491997 is a wasteful number, since it uses less digits than its factorization.

4806491997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84324443.

The product of its (nonzero) digits is 3919104, while the sum is 57.

The square root of 4806491997 is about 69328.8684243440. The cubic root of 4806491997 is about 1687.6254827731.

The spelling of 4806491997 in words is "four billion, eight hundred six million, four hundred ninety-one thousand, nine hundred ninety-seven".