65398406 has 8 divisors (see below), whose sum is σ = 101262144. Its totient is φ = 31644360.

The previous prime is 65398391. The next prime is 65398423. The reversal of 65398406 is 60489356.

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

It is a super-3 number, since 3×65398406³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

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, 527345 + ... + 527468.

It is an arithmetic number, because the mean of its divisors is an integer number (12657768).

Almost surely, 2^65398406 is an apocalyptic number.

65398406 is a deficient number, since it is larger than the sum of its proper divisors (35863738).

65398406 is a wasteful number, since it uses less digits than its factorization.

65398406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054846.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 65398406 is about 8086.9280941529. The cubic root of 65398406 is about 402.8923807563.

The spelling of 65398406 in words is "sixty-five million, three hundred ninety-eight thousand, four hundred six".