88840061 has 2 divisors, whose sum is σ = 88840062. Its totient is φ = 88840060.

The previous prime is 88840013. The next prime is 88840091. The reversal of 88840061 is 16004888.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88717561 + 122500 = 9419^2 + 350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88840061 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 (88840091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44420030 + 44420031.

It is an arithmetic number, because the mean of its divisors is an integer number (44420031).

Almost surely, 2^88840061 is an apocalyptic number.

It is an amenable number.

88840061 is a deficient number, since it is larger than the sum of its proper divisors (1).

88840061 is an equidigital number, since it uses as much as digits as its factorization.

88840061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 88840061 is about 9425.5005702615. The cubic root of 88840061 is about 446.2069009264.

The spelling of 88840061 in words is "eighty-eight million, eight hundred forty thousand, sixty-one".