988291523 has 2 divisors, whose sum is σ = 988291524. Its totient is φ = 988291522.

The previous prime is 988291519. The next prime is 988291537. The reversal of 988291523 is 325192889.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 988291523 - 2² = 988291519 is a prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (988291573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494145761 + 494145762.

It is an arithmetic number, because the mean of its divisors is an integer number (494145762).

Almost surely, 2^988291523 is an apocalyptic number.

988291523 is a deficient number, since it is larger than the sum of its proper divisors (1).

988291523 is an equidigital number, since it uses as much as digits as its factorization.

988291523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 47.

The square root of 988291523 is about 31437.1042400537. The cubic root of 988291523 is about 996.0818424250.

The spelling of 988291523 in words is "nine hundred eighty-eight million, two hundred ninety-one thousand, five hundred twenty-three".