88978831 has 4 divisors (see below), whose sum is σ = 89003232. Its totient is φ = 88954432.

The previous prime is 88978829. The next prime is 88978853. The reversal of 88978831 is 13887988.

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

It is a cyclic number.

It is not a de Polignac number, because 88978831 - 2¹ = 88978829 is a prime.

It is a super-2 number, since 2×88978831² = 15834464732253122, which 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 (88978871) 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, 5506 + ... + 14431.

It is an arithmetic number, because the mean of its divisors is an integer number (22250808).

Almost surely, 2^88978831 is an apocalyptic number.

88978831 is a deficient number, since it is larger than the sum of its proper divisors (24401).

88978831 is a wasteful number, since it uses less digits than its factorization.

88978831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24400.

The product of its digits is 774144, while the sum is 52.

The square root of 88978831 is about 9432.8591105772. The cubic root of 88978831 is about 446.4391081789.

The spelling of 88978831 in words is "eighty-eight million, nine hundred seventy-eight thousand, eight hundred thirty-one".