7640481 has 8 divisors (see below), whose sum is σ = 10200960. Its totient is φ = 5086832.

The previous prime is 7640471. The next prime is 7640483. The reversal of 7640481 is 1840467.

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

It is a cyclic number.

It is not a de Polignac number, because 7640481 - 2¹⁸ = 7378337 is a prime.

It is a super-2 number, since 2×7640481² = 116753899822722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7640483) 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, 2155 + ... + 4463.

It is an arithmetic number, because the mean of its divisors is an integer number (1275120).

Almost surely, 2^7640481 is an apocalyptic number.

It is an amenable number.

7640481 is a deficient number, since it is larger than the sum of its proper divisors (2560479).

7640481 is a wasteful number, since it uses less digits than its factorization.

7640481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 7640481 is about 2764.1420006939. The cubic root of 7640481 is about 196.9579732899.

The spelling of 7640481 in words is "seven million, six hundred forty thousand, four hundred eighty-one".