88821949 has 8 divisors (see below), whose sum is σ = 91498680. Its totient is φ = 86169600.

The previous prime is 88821919. The next prime is 88822003. The reversal of 88821949 is 94912888.

It can be written as a sum of positive squares in 4 ways, for example, as 18429849 + 70392100 = 4293^2 + 8390^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 88821949 - 2⁹ = 88821437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88821919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1437 + ... + 13405.

It is an arithmetic number, because the mean of its divisors is an integer number (11437335).

Almost surely, 2^88821949 is an apocalyptic number.

It is an amenable number.

88821949 is a deficient number, since it is larger than the sum of its proper divisors (2676731).

88821949 is a wasteful number, since it uses less digits than its factorization.

88821949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12191.

The product of its digits is 331776, while the sum is 49.

The square root of 88821949 is about 9424.5397235090. The cubic root of 88821949 is about 446.1765758360.

The spelling of 88821949 in words is "eighty-eight million, eight hundred twenty-one thousand, nine hundred forty-nine".