5281978 has 16 divisors (see below), whose sum is σ = 8580096. Its totient is φ = 2424240.

The previous prime is 5281949. The next prime is 5281979. The reversal of 5281978 is 8791825.

It is a super-3 number, since 3×5281978³ (a number of 21 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5281978.

It is not an unprimeable number, because it can be changed into a prime (5281979) 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, 5343 + ... + 6253.

It is an arithmetic number, because the mean of its divisors is an integer number (536256).

Almost surely, 2^5281978 is an apocalyptic number.

5281978 is a deficient number, since it is larger than the sum of its proper divisors (3298118).

5281978 is a wasteful number, since it uses less digits than its factorization.

5281978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149.

The product of its digits is 40320, while the sum is 40.

The square root of 5281978 is about 2298.2554253172. The cubic root of 5281978 is about 174.1534955916.

The spelling of 5281978 in words is "five million, two hundred eighty-one thousand, nine hundred seventy-eight".