88815641 has 2 divisors, whose sum is σ = 88815642. Its totient is φ = 88815640.

The previous prime is 88815637. The next prime is 88815653. The reversal of 88815641 is 14651888.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87815641 + 1000000 = 9371^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 88815641 - 2² = 88815637 is a prime.

It is not a weakly prime, because it can be changed into another prime (88815241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44407820 + 44407821.

It is an arithmetic number, because the mean of its divisors is an integer number (44407821).

Almost surely, 2^88815641 is an apocalyptic number.

It is an amenable number.

88815641 is a deficient number, since it is larger than the sum of its proper divisors (1).

88815641 is an equidigital number, since it uses as much as digits as its factorization.

88815641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61440, while the sum is 41.

The square root of 88815641 is about 9424.2050593140. The cubic root of 88815641 is about 446.1660133248.

The spelling of 88815641 in words is "eighty-eight million, eight hundred fifteen thousand, six hundred forty-one".