988667579 has 2 divisors, whose sum is σ = 988667580. Its totient is φ = 988667578.

The previous prime is 988667557. The next prime is 988667591. The reversal of 988667579 is 975766889.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 988667579 - 2¹² = 988663483 is a prime.

It is not a weakly prime, because it can be changed into another prime (988667509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494333789 + 494333790.

It is an arithmetic number, because the mean of its divisors is an integer number (494333790).

Almost surely, 2^988667579 is an apocalyptic number.

988667579 is a deficient number, since it is larger than the sum of its proper divisors (1).

988667579 is an equidigital number, since it uses as much as digits as its factorization.

988667579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 65.

The square root of 988667579 is about 31443.0847564294. The cubic root of 988667579 is about 996.2081665051.

The spelling of 988667579 in words is "nine hundred eighty-eight million, six hundred sixty-seven thousand, five hundred seventy-nine".