86303721 has 32 divisors (see below), whose sum is σ = 139460608. Its totient is φ = 46422720.

The previous prime is 86303699. The next prime is 86303741. The reversal of 86303721 is 12730368.

It is not a de Polignac number, because 86303721 - 2⁵ = 86303689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86303741) 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, 22296 + ... + 25878.

It is an arithmetic number, because the mean of its divisors is an integer number (4358144).

Almost surely, 2^86303721 is an apocalyptic number.

It is an amenable number.

86303721 is a deficient number, since it is larger than the sum of its proper divisors (53156887).

86303721 is a wasteful number, since it uses less digits than its factorization.

86303721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 86303721 is about 9289.9796016999. The cubic root of 86303721 is about 441.9195082162.

The spelling of 86303721 in words is "eighty-six million, three hundred three thousand, seven hundred twenty-one".