7664001 has 8 divisors (see below), whose sum is σ = 10254720. Its totient is φ = 5091312.

The previous prime is 7663993. The next prime is 7664009. The reversal of 7664001 is 1004667.

It is an interprime number because it is at equal distance from previous prime (7663993) and next prime (7664009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7664001 - 2³ = 7663993 is a prime.

It is a super-2 number, since 2×7664001² = 117473822656002, which contains 22 as substring.

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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3481 + ... + 5238.

It is an arithmetic number, because the mean of its divisors is an integer number (1281840).

Almost surely, 2^7664001 is an apocalyptic number.

It is an amenable number.

7664001 is a deficient number, since it is larger than the sum of its proper divisors (2590719).

7664001 is a wasteful number, since it uses less digits than its factorization.

7664001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9015.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 7664001 is about 2768.3932162899. The cubic root of 7664001 is about 197.1598674823.

Adding to 7664001 its reverse (1004667), we get a palindrome (8668668).

The spelling of 7664001 in words is "seven million, six hundred sixty-four thousand, one".