7664069 has 16 divisors (see below), whose sum is σ = 9105408. Its totient is φ = 6314112.

The previous prime is 7664053. The next prime is 7664077. The reversal of 7664069 is 9604667.

7664069 = T₁₀₂ + T₁₀₃ + ... + T₃₆₀.

It is not a de Polignac number, because 7664069 - 2⁴ = 7664053 is a prime.

It is a super-2 number, since 2×7664069² = 117475907273522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7664009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32777 + ... + 33009.

It is an arithmetic number, because the mean of its divisors is an integer number (569088).

Almost surely, 2^7664069 is an apocalyptic number.

It is an amenable number.

7664069 is a deficient number, since it is larger than the sum of its proper divisors (1441339).

7664069 is a wasteful number, since it uses less digits than its factorization.

7664069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 7664069 is about 2768.4054977550. The cubic root of 7664069 is about 197.1604505908.

The spelling of 7664069 in words is "seven million, six hundred sixty-four thousand, sixty-nine".