987487601 has 2 divisors, whose sum is σ = 987487602. Its totient is φ = 987487600.

The previous prime is 987487591. The next prime is 987487621. The reversal of 987487601 is 106784789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 643941376 + 343546225 = 25376^2 + 18535^2 .

It is an emirp because it is prime and its reverse (106784789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 987487601 - 2⁶ = 987487537 is a prime.

It is a super-3 number, since 3×987487601³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 987487601.

It is not a weakly prime, because it can be changed into another prime (987487621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493743800 + 493743801.

It is an arithmetic number, because the mean of its divisors is an integer number (493743801).

Almost surely, 2^987487601 is an apocalyptic number.

It is an amenable number.

987487601 is a deficient number, since it is larger than the sum of its proper divisors (1).

987487601 is an equidigital number, since it uses as much as digits as its factorization.

987487601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 987487601 is about 31424.3154420267. The cubic root of 987487601 is about 995.8116828230.

The spelling of 987487601 in words is "nine hundred eighty-seven million, four hundred eighty-seven thousand, six hundred one".