980386513 has 2 divisors, whose sum is σ = 980386514. Its totient is φ = 980386512.

The previous prime is 980386507. The next prime is 980386543. The reversal of 980386513 is 315683089.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 824436369 + 155950144 = 28713^2 + 12488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-980386513 is a prime.

It is a super-2 number, since 2×980386513² = 1922315429744598338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 980386513.

It is not a weakly prime, because it can be changed into another prime (980386543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490193256 + 490193257.

It is an arithmetic number, because the mean of its divisors is an integer number (490193257).

Almost surely, 2^980386513 is an apocalyptic number.

980386513 is the 16737-th centered heptagonal number.

It is an amenable number.

980386513 is a deficient number, since it is larger than the sum of its proper divisors (1).

980386513 is an equidigital number, since it uses as much as digits as its factorization.

980386513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 980386513 is about 31311.1244288671. The cubic root of 980386513 is about 993.4189558668.

The spelling of 980386513 in words is "nine hundred eighty million, three hundred eighty-six thousand, five hundred thirteen".