88629561 has 12 divisors (see below), whose sum is σ = 128381760. Its totient is φ = 58919640.

The previous prime is 88629559. The next prime is 88629571. The reversal of 88629561 is 16592688.

88629561 is a `hidden beast` number, since 8 + 86 + 2 + 9 + 561 = 666.

It is not a de Polignac number, because 88629561 - 2¹ = 88629559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88629571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10485 + ... + 16946.

It is an arithmetic number, because the mean of its divisors is an integer number (10698480).

Almost surely, 2^88629561 is an apocalyptic number.

It is an amenable number.

88629561 is a deficient number, since it is larger than the sum of its proper divisors (39752199).

88629561 is a wasteful number, since it uses less digits than its factorization.

88629561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27796 (or 27793 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 88629561 is about 9414.3274321642. The cubic root of 88629561 is about 445.8542040559.

The spelling of 88629561 in words is "eighty-eight million, six hundred twenty-nine thousand, five hundred sixty-one".