86407890 has 32 divisors (see below), whose sum is σ = 210479040. Its totient is φ = 22697664.

The previous prime is 86407873. The next prime is 86407901. The reversal of 86407890 is 9870468.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19485 + ... + 23504.

It is an arithmetic number, because the mean of its divisors is an integer number (6577470).

Almost surely, 2^86407890 is an apocalyptic number.

86407890 is an abundant number, since it is smaller than the sum of its proper divisors (124071150).

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

86407890 is a wasteful number, since it uses less digits than its factorization.

86407890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43066.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 86407890 is about 9295.5844356339. The cubic root of 86407890 is about 442.0972363756.

The spelling of 86407890 in words is "eighty-six million, four hundred seven thousand, eight hundred ninety".