88840391 has 2 divisors, whose sum is σ = 88840392. Its totient is φ = 88840390.

The previous prime is 88840373. The next prime is 88840417. The reversal of 88840391 is 19304888.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88840391 - 2¹⁰ = 88839367 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88840331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44420195 + 44420196.

It is an arithmetic number, because the mean of its divisors is an integer number (44420196).

Almost surely, 2^88840391 is an apocalyptic number.

88840391 is a deficient number, since it is larger than the sum of its proper divisors (1).

88840391 is an equidigital number, since it uses as much as digits as its factorization.

88840391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 88840391 is about 9425.5180759468. The cubic root of 88840391 is about 446.2074534103.

The spelling of 88840391 in words is "eighty-eight million, eight hundred forty thousand, three hundred ninety-one".