1006604651 has 4 divisors (see below), whose sum is σ = 1084035792. Its totient is φ = 929173512.

The previous prime is 1006604639. The next prime is 1006604657. The reversal of 1006604651 is 1564066001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1564066001 = 617 ⋅2534953.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1006604651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1006604657) 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, 38715551 + ... + 38715576.

It is an arithmetic number, because the mean of its divisors is an integer number (271008948).

Almost surely, 2^1006604651 is an apocalyptic number.

1006604651 is a deficient number, since it is larger than the sum of its proper divisors (77431141).

1006604651 is an equidigital number, since it uses as much as digits as its factorization.

1006604651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77431140.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1006604651 is about 31727.0334415306. The cubic root of 1006604651 is about 1002.1967212157.

The spelling of 1006604651 in words is "one billion, six million, six hundred four thousand, six hundred fifty-one".