88313993 has 2 divisors, whose sum is σ = 88313994. Its totient is φ = 88313992.

The previous prime is 88313983. The next prime is 88314029. The reversal of 88313993 is 39931388.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88209664 + 104329 = 9392^2 + 323^2 .

It is a cyclic number.

It is not a de Polignac number, because 88313993 - 2⁴ = 88313977 is a prime.

It is a super-2 number, since 2×88313993² = 15598722719208098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88313923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44156996 + 44156997.

It is an arithmetic number, because the mean of its divisors is an integer number (44156997).

Almost surely, 2^88313993 is an apocalyptic number.

It is an amenable number.

88313993 is a deficient number, since it is larger than the sum of its proper divisors (1).

88313993 is an equidigital number, since it uses as much as digits as its factorization.

88313993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The square root of 88313993 is about 9397.5525005184. The cubic root of 88313993 is about 445.3244160464.

The spelling of 88313993 in words is "eighty-eight million, three hundred thirteen thousand, nine hundred ninety-three".