88549821 has 32 divisors (see below), whose sum is σ = 140325120. Its totient is φ = 54991872.

The previous prime is 88549817. The next prime is 88549859. The reversal of 88549821 is 12894588.

It is a happy number.

88549821 is a `hidden beast` number, since 88 + 549 + 8 + 21 = 666.

It is not a de Polignac number, because 88549821 - 2² = 88549817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88549801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46341 + ... + 48213.

It is an arithmetic number, because the mean of its divisors is an integer number (4385160).

Almost surely, 2^88549821 is an apocalyptic number.

It is an amenable number.

88549821 is a deficient number, since it is larger than the sum of its proper divisors (51775299).

88549821 is a wasteful number, since it uses less digits than its factorization.

88549821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 1996 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 88549821 is about 9410.0914448267. The cubic root of 88549821 is about 445.7204522868.

The spelling of 88549821 in words is "eighty-eight million, five hundred forty-nine thousand, eight hundred twenty-one".