88651691 has 2 divisors, whose sum is σ = 88651692. Its totient is φ = 88651690.

The previous prime is 88651657. The next prime is 88651709. The reversal of 88651691 is 19615688.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 88651691 - 2⁶ = 88651627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88651391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44325845 + 44325846.

It is an arithmetic number, because the mean of its divisors is an integer number (44325846).

Almost surely, 2^88651691 is an apocalyptic number.

88651691 is a deficient number, since it is larger than the sum of its proper divisors (1).

88651691 is an equidigital number, since it uses as much as digits as its factorization.

88651691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 44.

The square root of 88651691 is about 9415.5026950238. The cubic root of 88651691 is about 445.8913095556.

The spelling of 88651691 in words is "eighty-eight million, six hundred fifty-one thousand, six hundred ninety-one".