987541651 has 2 divisors, whose sum is σ = 987541652. Its totient is φ = 987541650.

The previous prime is 987541631. The next prime is 987541657. The reversal of 987541651 is 156145789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 987541651 - 2⁷ = 987541523 is a prime.

It is not a weakly prime, because it can be changed into another prime (987541657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493770825 + 493770826.

It is an arithmetic number, because the mean of its divisors is an integer number (493770826).

Almost surely, 2^987541651 is an apocalyptic number.

987541651 is a deficient number, since it is larger than the sum of its proper divisors (1).

987541651 is an equidigital number, since it uses as much as digits as its factorization.

987541651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 46.

The square root of 987541651 is about 31425.1754330823. The cubic root of 987541651 is about 995.8298510307.

The spelling of 987541651 in words is "nine hundred eighty-seven million, five hundred forty-one thousand, six hundred fifty-one".