88421401 has 2 divisors, whose sum is σ = 88421402. Its totient is φ = 88421400.

The previous prime is 88421387. The next prime is 88421413. The reversal of 88421401 is 10412488.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87609600 + 811801 = 9360^2 + 901^2 .

It is a cyclic number.

It is not a de Polignac number, because 88421401 - 2¹⁵ = 88388633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88421401.

It is not a weakly prime, because it can be changed into another prime (88421101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44210700 + 44210701.

It is an arithmetic number, because the mean of its divisors is an integer number (44210701).

Almost surely, 2^88421401 is an apocalyptic number.

It is an amenable number.

88421401 is a deficient number, since it is larger than the sum of its proper divisors (1).

88421401 is an equidigital number, since it uses as much as digits as its factorization.

88421401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 88421401 is about 9403.2654434510. The cubic root of 88421401 is about 445.5048783016.

Adding to 88421401 its reverse (10412488), we get a palindrome (98833889).

The spelling of 88421401 in words is "eighty-eight million, four hundred twenty-one thousand, four hundred one".