538978 has 8 divisors (see below), whose sum is σ = 882000. Its totient is φ = 244980.

The previous prime is 538943. The next prime is 538987. The reversal of 538978 is 879835.

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

It is a self number, because there is not a number n which added to its sum of digits gives 538978.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12228 + ... + 12271.

It is an arithmetic number, because the mean of its divisors is an integer number (110250).

2⁵³⁸⁹⁷⁸ is an apocalyptic number.

538978 is a deficient number, since it is larger than the sum of its proper divisors (343022).

538978 is a wasteful number, since it uses less digits than its factorization.

538978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24512.

The product of its digits is 60480, while the sum is 40.

The square root of 538978 is about 734.1512105827. The cubic root of 538978 is about 81.3811231877.

It can be divided in two parts, 5 and 38978, that added together give a palindrome (38983).

The spelling of 538978 in words is "five hundred thirty-eight thousand, nine hundred seventy-eight".