86397490 has 8 divisors (see below), whose sum is σ = 155515500. Its totient is φ = 34558992.

The previous prime is 86397461. The next prime is 86397491. The reversal of 86397490 is 9479368.

It can be written as a sum of positive squares in 2 ways, for example, as 78730129 + 7667361 = 8873^2 + 2769^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 86397490.

It is not an unprimeable number, because it can be changed into a prime (86397491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4319865 + ... + 4319884.

Almost surely, 2^86397490 is an apocalyptic number.

86397490 is a deficient number, since it is larger than the sum of its proper divisors (69118010).

86397490 is a wasteful number, since it uses less digits than its factorization.

86397490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8639756.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 86397490 is about 9295.0250134144. The cubic root of 86397490 is about 442.0794988143.

It can be divided in two parts, 8639 and 7490, that added together give a square (16129 = 127²).

The spelling of 86397490 in words is "eighty-six million, three hundred ninety-seven thousand, four hundred ninety".