537978 has 16 divisors (see below), whose sum is σ = 1229760. Its totient is φ = 153696.

The previous prime is 537941. The next prime is 537991. The reversal of 537978 is 879735.

537978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

537978 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6363 + ... + 6446.

It is an arithmetic number, because the mean of its divisors is an integer number (76860).

2⁵³⁷⁹⁷⁸ is an apocalyptic number.

537978 is an abundant number, since it is smaller than the sum of its proper divisors (691782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

537978 is a wasteful number, since it uses less digits than its factorization.

537978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12821.

The product of its digits is 52920, while the sum is 39.

The square root of 537978 is about 733.4698357806. The cubic root of 537978 is about 81.3307615120.

The spelling of 537978 in words is "five hundred thirty-seven thousand, nine hundred seventy-eight".