88428091 has 2 divisors, whose sum is σ = 88428092. Its totient is φ = 88428090.

The previous prime is 88428059. The next prime is 88428133. The reversal of 88428091 is 19082488.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88428091 - 2⁵ = 88428059 is a prime.

It is not a weakly prime, because it can be changed into another prime (88428191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44214045 + 44214046.

It is an arithmetic number, because the mean of its divisors is an integer number (44214046).

Almost surely, 2^88428091 is an apocalyptic number.

88428091 is a deficient number, since it is larger than the sum of its proper divisors (1).

88428091 is an equidigital number, since it uses as much as digits as its factorization.

88428091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 88428091 is about 9403.6211642112. The cubic root of 88428091 is about 445.5161137130.

The spelling of 88428091 in words is "eighty-eight million, four hundred twenty-eight thousand, ninety-one".