88633921 has 2 divisors, whose sum is σ = 88633922. Its totient is φ = 88633920.

The previous prime is 88633859. The next prime is 88633939. The reversal of 88633921 is 12933688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52200625 + 36433296 = 7225^2 + 6036^2 .

It is a cyclic number.

It is not a de Polignac number, because 88633921 - 2¹⁹ = 88109633 is a prime.

It is not a weakly prime, because it can be changed into another prime (88636921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44316960 + 44316961.

It is an arithmetic number, because the mean of its divisors is an integer number (44316961).

Almost surely, 2^88633921 is an apocalyptic number.

It is an amenable number.

88633921 is a deficient number, since it is larger than the sum of its proper divisors (1).

88633921 is an equidigital number, since it uses as much as digits as its factorization.

88633921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 88633921 is about 9414.5589912645. The cubic root of 88633921 is about 445.8615149818.

The spelling of 88633921 in words is "eighty-eight million, six hundred thirty-three thousand, nine hundred twenty-one".