4497981 has 8 divisors (see below), whose sum is σ = 6010464. Its totient is φ = 2992080.

The previous prime is 4497973. The next prime is 4497989. The reversal of 4497981 is 1897944.

It is an interprime number because it is at equal distance from previous prime (4497973) and next prime (4497989).

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

It is not a de Polignac number, because 4497981 - 2³ = 4497973 is a prime.

It is a super-2 number, since 2×4497981² = 40463666152722, which contains 22 as substring.

It is a Curzon number.

4497981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4497989) 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, 271 + ... + 3011.

It is an arithmetic number, because the mean of its divisors is an integer number (751308).

Almost surely, 2^4497981 is an apocalyptic number.

It is an amenable number.

4497981 is a deficient number, since it is larger than the sum of its proper divisors (1512483).

4497981 is a wasteful number, since it uses less digits than its factorization.

4497981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291.

The product of its digits is 72576, while the sum is 42.

The square root of 4497981 is about 2120.8444073057. The cubic root of 4497981 is about 165.0716676729.

The spelling of 4497981 in words is "four million, four hundred ninety-seven thousand, nine hundred eighty-one".