7067664 has 30 divisors (see below), whose sum is σ = 19780046. Its totient is φ = 2355840.

The previous prime is 7067663. The next prime is 7067681. The reversal of 7067664 is 4667607.

It can be written as a sum of positive squares in only one way, i.e., 6051600 + 1016064 = 2460^2 + 1008^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7067663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24397 + ... + 24684.

Almost surely, 2^7067664 is an apocalyptic number.

It is an amenable number.

7067664 is an abundant number, since it is smaller than the sum of its proper divisors (12712382).

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

7067664 is a wasteful number, since it uses less digits than its factorization.

7067664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49095 (or 49086 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 7067664 is about 2658.5078521607. The cubic root of 7067664 is about 191.9075075339.

The spelling of 7067664 in words is "seven million, sixty-seven thousand, six hundred sixty-four".