88698403391 has 4 divisors (see below), whose sum is σ = 95521357512. Its totient is φ = 81875449272.

The previous prime is 88698403373. The next prime is 88698403421. The reversal of 88698403391 is 19330489688.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88698403391 is a prime.

It is a super-2 number, since 2×88698403391² (a number of 23 digits) contains 22 as substring.

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 88698403391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88698405391) 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, 3411477041 + ... + 3411477066.

It is an arithmetic number, because the mean of its divisors is an integer number (23880339378).

Almost surely, 2^88698403391 is an apocalyptic number.

88698403391 is a deficient number, since it is larger than the sum of its proper divisors (6822954121).

88698403391 is a wasteful number, since it uses less digits than its factorization.

88698403391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6822954120.

The product of its (nonzero) digits is 8957952, while the sum is 59.

The spelling of 88698403391 in words is "eighty-eight billion, six hundred ninety-eight million, four hundred three thousand, three hundred ninety-one".