7664071 has 4 divisors (see below), whose sum is σ = 7673112. Its totient is φ = 7655032.

The previous prime is 7664053. The next prime is 7664077. The reversal of 7664071 is 1704667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1704667 = 503 ⋅3389.

It is a cyclic number.

It is not a de Polignac number, because 7664071 - 2¹¹ = 7662023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7664077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3100 + ... + 4993.

It is an arithmetic number, because the mean of its divisors is an integer number (1918278).

Almost surely, 2^7664071 is an apocalyptic number.

7664071 is a deficient number, since it is larger than the sum of its proper divisors (9041).

7664071 is an equidigital number, since it uses as much as digits as its factorization.

7664071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9040.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 7664071 is about 2768.4058589737. The cubic root of 7664071 is about 197.1604677410.

The spelling of 7664071 in words is "seven million, six hundred sixty-four thousand, seventy-one".