988501679 has 4 divisors (see below), whose sum is σ = 1078365480. Its totient is φ = 898637880.

The previous prime is 988501663. The next prime is 988501693. The reversal of 988501679 is 976105889.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 988501679 - 2⁴ = 988501663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 988501679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988501639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44931884 + ... + 44931905.

It is an arithmetic number, because the mean of its divisors is an integer number (269591370).

Almost surely, 2^988501679 is an apocalyptic number.

988501679 is a deficient number, since it is larger than the sum of its proper divisors (89863801).

988501679 is a wasteful number, since it uses less digits than its factorization.

988501679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89863800.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 988501679 is about 31440.4465458110. The cubic root of 988501679 is about 996.1524416138.

The spelling of 988501679 in words is "nine hundred eighty-eight million, five hundred one thousand, six hundred seventy-nine".