987956051 has 2 divisors, whose sum is σ = 987956052. Its totient is φ = 987956050.

The previous prime is 987956041. The next prime is 987956077. The reversal of 987956051 is 150659789.

It is a happy number.

987956051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987956051 is a prime.

It is not a weakly prime, because it can be changed into another prime (987956041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493978025 + 493978026.

It is an arithmetic number, because the mean of its divisors is an integer number (493978026).

Almost surely, 2^987956051 is an apocalyptic number.

987956051 is a deficient number, since it is larger than the sum of its proper divisors (1).

987956051 is an equidigital number, since it uses as much as digits as its factorization.

987956051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 50.

The square root of 987956051 is about 31431.7681812525. The cubic root of 987956051 is about 995.9691242048.

The spelling of 987956051 in words is "nine hundred eighty-seven million, nine hundred fifty-six thousand, fifty-one".