88403940389 has 8 divisors (see below), whose sum is σ = 90912456000. Its totient is φ = 85929096352.

The previous prime is 88403940377. The next prime is 88403940433. The reversal of 88403940389 is 98304930488.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88403940389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88403940319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8412569 + ... + 8423070.

It is an arithmetic number, because the mean of its divisors is an integer number (11364057000).

Almost surely, 2^88403940389 is an apocalyptic number.

88403940389 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

88403940389 is a deficient number, since it is larger than the sum of its proper divisors (2508515611).

88403940389 is a wasteful number, since it uses less digits than its factorization.

88403940389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16835787.

The product of its (nonzero) digits is 5971968, while the sum is 56.

Subtracting 88403940389 from its reverse (98304930488), we obtain a palindrome (9900990099).

The spelling of 88403940389 in words is "eighty-eight billion, four hundred three million, nine hundred forty thousand, three hundred eighty-nine".