88212405 has 64 divisors (see below), whose sum is σ = 156204288. Its totient is φ = 42332160.

The previous prime is 88212379. The next prime is 88212407. The reversal of 88212405 is 50421288.

It is not a de Polignac number, because 88212405 - 2¹⁰ = 88211381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88212407) 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 63 ways as a sum of consecutive naturals, for example, 824362 + ... + 824468.

It is an arithmetic number, because the mean of its divisors is an integer number (2440692).

Almost surely, 2^88212405 is an apocalyptic number.

88212405 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

88212405 is a deficient number, since it is larger than the sum of its proper divisors (67991883).

88212405 is a wasteful number, since it uses less digits than its factorization.

88212405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 88212405 is about 9392.1459209278. The cubic root of 88212405 is about 445.1535976110.

The spelling of 88212405 in words is "eighty-eight million, two hundred twelve thousand, four hundred five".