987959051 has 2 divisors, whose sum is σ = 987959052. Its totient is φ = 987959050.

The previous prime is 987959047. The next prime is 987959053. The reversal of 987959051 is 150959789.

It is a strong prime.

It is an emirp because it is prime and its reverse (150959789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 987959051 - 2² = 987959047 is a prime.

Together with 987959053, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 987958984 and 987959002.

It is not a weakly prime, because it can be changed into another prime (987959053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493979525 + 493979526.

It is an arithmetic number, because the mean of its divisors is an integer number (493979526).

Almost surely, 2^987959051 is an apocalyptic number.

987959051 is a deficient number, since it is larger than the sum of its proper divisors (1).

987959051 is an equidigital number, since it uses as much as digits as its factorization.

987959051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1020600, while the sum is 53.

The square root of 987959051 is about 31431.8159036350. The cubic root of 987959051 is about 995.9701323146.

The spelling of 987959051 in words is "nine hundred eighty-seven million, nine hundred fifty-nine thousand, fifty-one".