65406708 has 18 divisors (see below), whose sum is σ = 165333714. Its totient is φ = 21802224.

The previous prime is 65406697. The next prime is 65406743. The reversal of 65406708 is 80760456.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 62916624 + 2490084 = 7932^2 + 1578^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1816853 = 65406708 / (6 + 5 + 4 + 0 + 6 + 7 + 0 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 908391 + ... + 908462.

Almost surely, 2^65406708 is an apocalyptic number.

It is an amenable number.

65406708 is an abundant number, since it is smaller than the sum of its proper divisors (99927006).

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

65406708 is a wasteful number, since it uses less digits than its factorization.

65406708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816863 (or 1816858 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 65406708 is about 8087.4413753671. The cubic root of 65406708 is about 402.9094284247.

The spelling of 65406708 in words is "sixty-five million, four hundred six thousand, seven hundred eight".