988742097 has 24 divisors (see below), whose sum is σ = 1643179200. Its totient is φ = 561198240.

The previous prime is 988742081. The next prime is 988742099. The reversal of 988742097 is 790247889.

It is not a de Polignac number, because 988742097 - 2⁴ = 988742081 is a prime.

It is a super-2 number, since 2×988742097² = 1955221868759914818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (988742099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43279 + ... + 62052.

It is an arithmetic number, because the mean of its divisors is an integer number (68465800).

Almost surely, 2^988742097 is an apocalyptic number.

It is an amenable number.

988742097 is a deficient number, since it is larger than the sum of its proper divisors (654437103).

988742097 is a wasteful number, since it uses less digits than its factorization.

988742097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105493 (or 105490 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 988742097 is about 31444.2697005353. The cubic root of 988742097 is about 996.2331946597.

It can be divided in two parts, 9887 and 42097, that added together give a square (51984 = 228²).

The spelling of 988742097 in words is "nine hundred eighty-eight million, seven hundred forty-two thousand, ninety-seven".