88426391 has 2 divisors, whose sum is σ = 88426392. Its totient is φ = 88426390.

The previous prime is 88426343. The next prime is 88426397. The reversal of 88426391 is 19362488.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 88426391 - 2¹⁰ = 88425367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88426397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44213195 + 44213196.

It is an arithmetic number, because the mean of its divisors is an integer number (44213196).

Almost surely, 2^88426391 is an apocalyptic number.

88426391 is a deficient number, since it is larger than the sum of its proper divisors (1).

88426391 is an equidigital number, since it uses as much as digits as its factorization.

88426391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 88426391 is about 9403.5307730660. The cubic root of 88426391 is about 445.5132587295.

The spelling of 88426391 in words is "eighty-eight million, four hundred twenty-six thousand, three hundred ninety-one".