988289537 has 2 divisors, whose sum is σ = 988289538. Its totient is φ = 988289536.

The previous prime is 988289513. The next prime is 988289567. The reversal of 988289537 is 735982889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 661981441 + 326308096 = 25729^2 + 18064^2 .

It is an emirp because it is prime and its reverse (735982889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 988289537 - 2⁶ = 988289473 is a prime.

It is a super-3 number, since 3×988289537³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (988289567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494144768 + 494144769.

It is an arithmetic number, because the mean of its divisors is an integer number (494144769).

Almost surely, 2^988289537 is an apocalyptic number.

It is an amenable number.

988289537 is a deficient number, since it is larger than the sum of its proper divisors (1).

988289537 is an equidigital number, since it uses as much as digits as its factorization.

988289537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 59.

The square root of 988289537 is about 31437.0726531590. The cubic root of 988289537 is about 996.0811752063.

The spelling of 988289537 in words is "nine hundred eighty-eight million, two hundred eighty-nine thousand, five hundred thirty-seven".