88721310 has 16 divisors (see below), whose sum is σ = 212931216. Its totient is φ = 23659008.

The previous prime is 88721293. The next prime is 88721323. The reversal of 88721310 is 1312788.

It is a happy number.

It is a super-2 number, since 2×88721310² = 15742941696232200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2957377 = 88721310 / (8 + 8 + 7 + 2 + 1 + 3 + 1 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1478659 + ... + 1478718.

It is an arithmetic number, because the mean of its divisors is an integer number (13308201).

Almost surely, 2^88721310 is an apocalyptic number.

88721310 is an abundant number, since it is smaller than the sum of its proper divisors (124209906).

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

88721310 is a wasteful number, since it uses less digits than its factorization.

88721310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957387.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 88721310 is about 9419.1990105316. The cubic root of 88721310 is about 446.0079998833.

The spelling of 88721310 in words is "eighty-eight million, seven hundred twenty-one thousand, three hundred ten".