65674405 has 8 divisors (see below), whose sum is σ = 79985952. Its totient is φ = 51755088.

The previous prime is 65674391. The next prime is 65674421. The reversal of 65674405 is 50447656.

It is a happy number.

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

It is not a de Polignac number, because 65674405 - 2⁷ = 65674277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97687 + ... + 98356.

It is an arithmetic number, because the mean of its divisors is an integer number (9998244).

Almost surely, 2^65674405 is an apocalyptic number.

It is an amenable number.

65674405 is a deficient number, since it is larger than the sum of its proper divisors (14311547).

65674405 is a wasteful number, since it uses less digits than its factorization.

65674405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196115.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 65674405 is about 8103.9746421124. The cubic root of 65674405 is about 403.4583569948.

The spelling of 65674405 in words is "sixty-five million, six hundred seventy-four thousand, four hundred five".