65974463 has 4 divisors (see below), whose sum is σ = 66127968. Its totient is φ = 65820960.

The previous prime is 65974457. The next prime is 65974471. The reversal of 65974463 is 36447956.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65974463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65974063) 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, 76106 + ... + 76967.

It is an arithmetic number, because the mean of its divisors is an integer number (16531992).

Almost surely, 2^65974463 is an apocalyptic number.

65974463 is a deficient number, since it is larger than the sum of its proper divisors (153505).

65974463 is a wasteful number, since it uses less digits than its factorization.

65974463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153504.

The product of its digits is 544320, while the sum is 44.

The square root of 65974463 is about 8122.4665588724. The cubic root of 65974463 is about 404.0718735473.

The spelling of 65974463 in words is "sixty-five million, nine hundred seventy-four thousand, four hundred sixty-three".