88819749 has 12 divisors (see below), whose sum is σ = 129220000. Its totient is φ = 58786344.

The previous prime is 88819723. The next prime is 88819807. The reversal of 88819749 is 94791888.

It is not a de Polignac number, because 88819749 - 2¹² = 88815653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 88819695 and 88819704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88819349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34249 + ... + 36750.

Almost surely, 2^88819749 is an apocalyptic number.

It is an amenable number.

88819749 is a deficient number, since it is larger than the sum of its proper divisors (40400251).

88819749 is a wasteful number, since it uses less digits than its factorization.

88819749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71144 (or 71141 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 88819749 is about 9424.4230062110. The cubic root of 88819749 is about 446.1728920747.

The spelling of 88819749 in words is "eighty-eight million, eight hundred nineteen thousand, seven hundred forty-nine".