88976821 has 2 divisors, whose sum is σ = 88976822. Its totient is φ = 88976820.

The previous prime is 88976773. The next prime is 88976837. The reversal of 88976821 is 12867988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70392100 + 18584721 = 8390^2 + 4311^2 .

It is a cyclic number.

It is not a de Polignac number, because 88976821 - 2⁹ = 88976309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88976621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44488410 + 44488411.

It is an arithmetic number, because the mean of its divisors is an integer number (44488411).

Almost surely, 2^88976821 is an apocalyptic number.

It is an amenable number.

88976821 is a deficient number, since it is larger than the sum of its proper divisors (1).

88976821 is an equidigital number, since it uses as much as digits as its factorization.

88976821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 49.

The square root of 88976821 is about 9432.7525675171. The cubic root of 88976821 is about 446.4357465203.

The spelling of 88976821 in words is "eighty-eight million, nine hundred seventy-six thousand, eight hundred twenty-one".