987433 has 2 divisors, whose sum is σ = 987434. Its totient is φ = 987432.

The previous prime is 987391. The next prime is 987457. The reversal of 987433 is 334789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 514089 + 473344 = 717^2 + 688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987433 is a prime.

It is an Ulam number.

It is a plaindrome in base 15.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (987463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493716 + 493717.

It is an arithmetic number, because the mean of its divisors is an integer number (493717).

2⁹⁸⁷⁴³³ is an apocalyptic number.

It is an amenable number.

987433 is a deficient number, since it is larger than the sum of its proper divisors (1).

987433 is an equidigital number, since it uses as much as digits as its factorization.

987433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 987433 is about 993.6966337872. The cubic root of 987433 is about 99.5793328731.

The spelling of 987433 in words is "nine hundred eighty-seven thousand, four hundred thirty-three".