988976749 has 12 divisors (see below), whose sum is σ = 1014474592. Its totient is φ = 963903600.

The previous prime is 988976731. The next prime is 988976753. The reversal of 988976749 is 947679889.

It is not a de Polignac number, because 988976749 - 2¹⁵ = 988943981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988976759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 682744 + ... + 684190.

Almost surely, 2^988976749 is an apocalyptic number.

It is an amenable number.

988976749 is a deficient number, since it is larger than the sum of its proper divisors (25497843).

988976749 is a wasteful number, since it uses less digits than its factorization.

988976749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716 (or 1615 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 67.

The square root of 988976749 is about 31448.0007154668. Note that the first 3 decimals coincide. The cubic root of 988976749 is about 996.3119983645.

The spelling of 988976749 in words is "nine hundred eighty-eight million, nine hundred seventy-six thousand, seven hundred forty-nine".