88221574 has 16 divisors (see below), whose sum is σ = 154091808. Its totient is φ = 37095552.

The previous prime is 88221499. The next prime is 88221589. The reversal of 88221574 is 47512288.

It is a super-2 number, since 2×88221574² = 15566092238074952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 58707 + ... + 60190.

It is an arithmetic number, because the mean of its divisors is an integer number (9630738).

Almost surely, 2^88221574 is an apocalyptic number.

88221574 is a deficient number, since it is larger than the sum of its proper divisors (65870234).

88221574 is a wasteful number, since it uses less digits than its factorization.

88221574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118959.

The product of its digits is 35840, while the sum is 37.

The square root of 88221574 is about 9392.6340288547. The cubic root of 88221574 is about 445.1690205058.

The spelling of 88221574 in words is "eighty-eight million, two hundred twenty-one thousand, five hundred seventy-four".