86478501 has 8 divisors (see below), whose sum is σ = 116884480. Its totient is φ = 56862432.

The previous prime is 86478487. The next prime is 86478503. The reversal of 86478501 is 10587468.

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

It is not a de Polignac number, because 86478501 - 2¹⁰ = 86477477 is a prime.

It is a super-2 number, since 2×86478501² = 14957062270414002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86478501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86478503) 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, 197221 + ... + 197658.

It is an arithmetic number, because the mean of its divisors is an integer number (14610560).

Almost surely, 2^86478501 is an apocalyptic number.

It is an amenable number.

86478501 is a deficient number, since it is larger than the sum of its proper divisors (30405979).

86478501 is a wasteful number, since it uses less digits than its factorization.

86478501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394955.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 86478501 is about 9299.3817536436. The cubic root of 86478501 is about 442.2176282693.

The spelling of 86478501 in words is "eighty-six million, four hundred seventy-eight thousand, five hundred one".