1048996621 has 2 divisors, whose sum is σ = 1048996622. Its totient is φ = 1048996620.

The previous prime is 1048996609. The next prime is 1048996667. The reversal of 1048996621 is 1266998401.

It is a happy number.

It is an a-pointer prime, because the next prime (1048996667) can be obtained adding 1048996621 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1040062500 + 8934121 = 32250^2 + 2989^2 .

It is a cyclic number.

It is not a de Polignac number, because 1048996621 - 2⁷ = 1048996493 is a prime.

It is a super-2 number, since 2×1048996621² = 2200787821738835282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1048996601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524498310 + 524498311.

It is an arithmetic number, because the mean of its divisors is an integer number (524498311).

Almost surely, 2^1048996621 is an apocalyptic number.

It is an amenable number.

1048996621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1048996621 is an equidigital number, since it uses as much as digits as its factorization.

1048996621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 1048996621 is about 32388.2173174134. The cubic root of 1048996621 is about 1016.0724978363.

The spelling of 1048996621 in words is "one billion, forty-eight million, nine hundred ninety-six thousand, six hundred twenty-one".