987238633 has 2 divisors, whose sum is σ = 987238634. Its totient is φ = 987238632.

The previous prime is 987238607. The next prime is 987238643. The reversal of 987238633 is 336832789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 805878544 + 181360089 = 28388^2 + 13467^2 .

It is a cyclic number.

It is not a de Polignac number, because 987238633 - 2⁵ = 987238601 is a prime.

It is not a weakly prime, because it can be changed into another prime (987238643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493619316 + 493619317.

It is an arithmetic number, because the mean of its divisors is an integer number (493619317).

Almost surely, 2^987238633 is an apocalyptic number.

It is an amenable number.

987238633 is a deficient number, since it is larger than the sum of its proper divisors (1).

987238633 is an equidigital number, since it uses as much as digits as its factorization.

987238633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The square root of 987238633 is about 31420.3538013180. The cubic root of 987238633 is about 995.7279868922.

The spelling of 987238633 in words is "nine hundred eighty-seven million, two hundred thirty-eight thousand, six hundred thirty-three".