986954621 has 2 divisors, whose sum is σ = 986954622. Its totient is φ = 986954620.

The previous prime is 986954597. The next prime is 986954659. The reversal of 986954621 is 126459689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 865183396 + 121771225 = 29414^2 + 11035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-986954621 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 986954621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (986924621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493477310 + 493477311.

It is an arithmetic number, because the mean of its divisors is an integer number (493477311).

Almost surely, 2^986954621 is an apocalyptic number.

It is an amenable number.

986954621 is a deficient number, since it is larger than the sum of its proper divisors (1).

986954621 is an equidigital number, since it uses as much as digits as its factorization.

986954621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 50.

The square root of 986954621 is about 31415.8339217663. The cubic root of 986954621 is about 995.6324929861.

The spelling of 986954621 in words is "nine hundred eighty-six million, nine hundred fifty-four thousand, six hundred twenty-one".