1046669621 has 4 divisors (see below), whose sum is σ = 1047403500. Its totient is φ = 1045935744.

The previous prime is 1046669597. The next prime is 1046669641. The reversal of 1046669621 is 1269666401.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59830225 + 986839396 = 7735^2 + 31414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1046669621 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 (1046669641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364796 + ... + 367653.

It is an arithmetic number, because the mean of its divisors is an integer number (261850875).

Almost surely, 2^1046669621 is an apocalyptic number.

It is an amenable number.

1046669621 is a deficient number, since it is larger than the sum of its proper divisors (733879).

1046669621 is an equidigital number, since it uses as much as digits as its factorization.

1046669621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733878.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1046669621 is about 32352.2738149886. The cubic root of 1046669621 is about 1015.3206202364.

The spelling of 1046669621 in words is "one billion, forty-six million, six hundred sixty-nine thousand, six hundred twenty-one".