86947970 has 8 divisors (see below), whose sum is σ = 156506364. Its totient is φ = 34779184.

The previous prime is 86947969. The next prime is 86948011. The reversal of 86947970 is 7974968.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 84511249 + 2436721 = 9193^2 + 1561^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4347389 + ... + 4347408.

Almost surely, 2^86947970 is an apocalyptic number.

86947970 is a deficient number, since it is larger than the sum of its proper divisors (69558394).

86947970 is a wasteful number, since it uses less digits than its factorization.

86947970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8694804.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 86947970 is about 9324.5895352021. The cubic root of 86947970 is about 443.0164122144.

The spelling of 86947970 in words is "eighty-six million, nine hundred forty-seven thousand, nine hundred seventy".