86720501 has 8 divisors (see below), whose sum is σ = 100789440. Its totient is φ = 73071648.

The previous prime is 86720483. The next prime is 86720507. The reversal of 86720501 is 10502768.

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 86720501 - 2⁶ = 86720437 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 (86720507) 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, 104576 + ... + 105401.

It is an arithmetic number, because the mean of its divisors is an integer number (12598680).

Almost surely, 2^86720501 is an apocalyptic number.

It is an amenable number.

86720501 is a deficient number, since it is larger than the sum of its proper divisors (14068939).

86720501 is a wasteful number, since it uses less digits than its factorization.

86720501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210043.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 86720501 is about 9312.3842811602. The cubic root of 86720501 is about 442.6297422443.

The spelling of 86720501 in words is "eighty-six million, seven hundred twenty thousand, five hundred one".