86478502 has 8 divisors (see below), whose sum is σ = 141510312. Its totient is φ = 39308400.

The previous prime is 86478487. The next prime is 86478503. The reversal of 86478502 is 20587468.

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

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 3 ways as a sum of consecutive naturals, for example, 1965399 + ... + 1965442.

It is an arithmetic number, because the mean of its divisors is an integer number (17688789).

Almost surely, 2^86478502 is an apocalyptic number.

86478502 is a deficient number, since it is larger than the sum of its proper divisors (55031810).

86478502 is a wasteful number, since it uses less digits than its factorization.

86478502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930854.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 86478502 is about 9299.3818074106. The cubic root of 86478502 is about 442.2176299738.

The spelling of 86478502 in words is "eighty-six million, four hundred seventy-eight thousand, five hundred two".