6539974 has 8 divisors (see below), whose sum is σ = 11211408. Its totient is φ = 2802840.

The previous prime is 6539963. The next prime is 6539983. The reversal of 6539974 is 4799356.

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 6539974.

It is a congruent number.

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, 233557 + ... + 233584.

It is an arithmetic number, because the mean of its divisors is an integer number (1401426).

Almost surely, 2^6539974 is an apocalyptic number.

6539974 is a deficient number, since it is larger than the sum of its proper divisors (4671434).

6539974 is a wasteful number, since it uses less digits than its factorization.

6539974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467150.

The product of its digits is 204120, while the sum is 43.

The square root of 6539974 is about 2557.3372871016. The cubic root of 6539974 is about 187.0073490778.

The spelling of 6539974 in words is "six million, five hundred thirty-nine thousand, nine hundred seventy-four".