88722028469 has 4 divisors (see below), whose sum is σ = 89937398796. Its totient is φ = 87506658144.

The previous prime is 88722028459. The next prime is 88722028471. The reversal of 88722028469 is 96482022788.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49235172100 + 39486856369 = 221890^2 + 198713^2 .

It is a cyclic number.

It is not a de Polignac number, because 88722028469 - 2⁴ = 88722028453 is a prime.

It is a super-2 number, since 2×88722028469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88722028459) 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, 607685054 + ... + 607685199.

It is an arithmetic number, because the mean of its divisors is an integer number (22484349699).

Almost surely, 2^88722028469 is an apocalyptic number.

It is an amenable number.

88722028469 is a deficient number, since it is larger than the sum of its proper divisors (1215370327).

88722028469 is a wasteful number, since it uses less digits than its factorization.

88722028469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215370326.

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 88722028469 in words is "eighty-eight billion, seven hundred twenty-two million, twenty-eight thousand, four hundred sixty-nine".