65623406 has 8 divisors (see below), whose sum is σ = 98715024. Its totient is φ = 32718400.

The previous prime is 65623387. The next prime is 65623409. The reversal of 65623406 is 60432656.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65623409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45770 + ... + 47181.

It is an arithmetic number, because the mean of its divisors is an integer number (12339378).

Almost surely, 2^65623406 is an apocalyptic number.

65623406 is a deficient number, since it is larger than the sum of its proper divisors (33091618).

65623406 is a wasteful number, since it uses less digits than its factorization.

65623406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93306.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 65623406 is about 8100.8274885965. The cubic root of 65623406 is about 403.3538956952.

The spelling of 65623406 in words is "sixty-five million, six hundred twenty-three thousand, four hundred six".