1006693621 has 8 divisors (see below), whose sum is σ = 1011920000. Its totient is φ = 1001479248.

The previous prime is 1006693591. The next prime is 1006693651. The reversal of 1006693621 is 1263966001.

1006693621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1006693591) and next prime (1006693651).

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 1006693621 - 2²³ = 998305013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006693651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198880 + ... + 203878.

It is an arithmetic number, because the mean of its divisors is an integer number (126490000).

Almost surely, 2^1006693621 is an apocalyptic number.

It is an amenable number.

1006693621 is a deficient number, since it is larger than the sum of its proper divisors (5226379).

1006693621 is an equidigital number, since it uses as much as digits as its factorization.

1006693621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6003.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 1006693621 is about 31728.4355271419. The cubic root of 1006693621 is about 1002.2262471458.

The spelling of 1006693621 in words is "one billion, six million, six hundred ninety-three thousand, six hundred twenty-one".