88321906 has 8 divisors (see below), whose sum is σ = 132901740. Its totient is φ = 44021328.

The previous prime is 88321901. The next prime is 88321943. The reversal of 88321906 is 60912388.

It can be written as a sum of positive squares in 2 ways, for example, as 87590881 + 731025 = 9359^2 + 855^2 .

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

It is not an unprimeable number, because it can be changed into a prime (88321901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69021 + ... + 70288.

Almost surely, 2^88321906 is an apocalyptic number.

88321906 is a deficient number, since it is larger than the sum of its proper divisors (44579834).

88321906 is a wasteful number, since it uses less digits than its factorization.

88321906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139628.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 88321906 is about 9397.9735049637. The cubic root of 88321906 is about 445.3377161164.

The spelling of 88321906 in words is "eighty-eight million, three hundred twenty-one thousand, nine hundred six".