88277981 has 4 divisors (see below), whose sum is σ = 96303264. Its totient is φ = 80252700.

The previous prime is 88277953. The next prime is 88277989. The reversal of 88277981 is 18977288.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 88277981 - 2¹⁴ = 88261597 is a prime.

It is a super-2 number, since 2×88277981² = 15586003858872722, 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 (88277989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4012625 + ... + 4012646.

It is an arithmetic number, because the mean of its divisors is an integer number (24075816).

Almost surely, 2^88277981 is an apocalyptic number.

It is an amenable number.

88277981 is a deficient number, since it is larger than the sum of its proper divisors (8025283).

88277981 is a wasteful number, since it uses less digits than its factorization.

88277981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8025282.

The product of its digits is 451584, while the sum is 50.

The square root of 88277981 is about 9395.6362743563. The cubic root of 88277981 is about 445.2638774966.

The spelling of 88277981 in words is "eighty-eight million, two hundred seventy-seven thousand, nine hundred eighty-one".