65694406 has 4 divisors (see below), whose sum is σ = 98541612. Its totient is φ = 32847202.

The previous prime is 65694403. The next prime is 65694407. The reversal of 65694406 is 60449656.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65694403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16423600 + ... + 16423603.

It is an arithmetic number, because the mean of its divisors is an integer number (24635403).

Almost surely, 2^65694406 is an apocalyptic number.

65694406 is a deficient number, since it is larger than the sum of its proper divisors (32847206).

65694406 is a wasteful number, since it uses less digits than its factorization.

65694406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32847205.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 65694406 is about 8105.2085722701. The cubic root of 65694406 is about 403.4993102985.

The spelling of 65694406 in words is "sixty-five million, six hundred ninety-four thousand, four hundred six".