7640467 has 4 divisors (see below), whose sum is σ = 7660800. Its totient is φ = 7620136.

The previous prime is 7640453. The next prime is 7640471.

7640467 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7640467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7640767) 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, 9592 + ... + 10357.

It is an arithmetic number, because the mean of its divisors is an integer number (1915200).

Almost surely, 2^7640467 is an apocalyptic number.

7640467 is a deficient number, since it is larger than the sum of its proper divisors (20333).

7640467 is a wasteful number, since it uses less digits than its factorization.

7640467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20332.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 7640467 is about 2764.1394682613. The cubic root of 7640467 is about 196.9578529915.

The spelling of 7640467 in words is "seven million, six hundred forty thousand, four hundred sixty-seven".