7640609587 has 16 divisors (see below), whose sum is σ = 8581388032. Its totient is φ = 6754959360.

The previous prime is 7640609579. The next prime is 7640609609. The reversal of 7640609587 is 7859060467.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7640609587 - 2³ = 7640609579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7640609527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58638 + ... + 136819.

It is an arithmetic number, because the mean of its divisors is an integer number (536336752).

Almost surely, 2^7640609587 is an apocalyptic number.

7640609587 is a deficient number, since it is larger than the sum of its proper divisors (940778445).

7640609587 is a wasteful number, since it uses less digits than its factorization.

7640609587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195598.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The square root of 7640609587 is about 87410.5805208958. The cubic root of 7640609587 is about 1969.5907819821.

The spelling of 7640609587 in words is "seven billion, six hundred forty million, six hundred nine thousand, five hundred eighty-seven".