88720530 has 32 divisors (see below), whose sum is σ = 213240384. Its totient is φ = 23624256.

The previous prime is 88720469. The next prime is 88720531. The reversal of 88720530 is 3502788.

It is a junction number, because it is equal to n+sod(n) for n = 88720491 and 88720500.

It is not an unprimeable number, because it can be changed into a prime (88720531) 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 15 ways as a sum of consecutive naturals, for example, 23857 + ... + 27323.

It is an arithmetic number, because the mean of its divisors is an integer number (6663762).

Almost surely, 2^88720530 is an apocalyptic number.

88720530 is an abundant number, since it is smaller than the sum of its proper divisors (124519854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88720530 is a wasteful number, since it uses less digits than its factorization.

88720530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4330.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 88720530 is about 9419.1576056461. The cubic root of 88720530 is about 446.0066928420.

The spelling of 88720530 in words is "eighty-eight million, seven hundred twenty thousand, five hundred thirty".