6520704 has 32 divisors (see below), whose sum is σ = 17321640. Its totient is φ = 2173440.

The previous prime is 6520699. The next prime is 6520727. The reversal of 6520704 is 4070256.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 8107 + ... + 8874.

Almost surely, 2^6520704 is an apocalyptic number.

6520704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6520704 is an abundant number, since it is smaller than the sum of its proper divisors (10800936).

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

6520704 is a wasteful number, since it uses less digits than its factorization.

6520704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16998 (or 16986 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 6520704 is about 2553.5669170789. The cubic root of 6520704 is about 186.8234963192.

It can be divided in two parts, 6 and 520704, that added together give a triangular number (520710 = T₁₀₂₀).

The spelling of 6520704 in words is "six million, five hundred twenty thousand, seven hundred four".