65371947 has 16 divisors (see below), whose sum is σ = 89172480. Its totient is φ = 42588000.

The previous prime is 65371939. The next prime is 65371981. The reversal of 65371947 is 74917356.

It is not a de Polignac number, because 65371947 - 2³ = 65371939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65371899 and 65371908.

It is not an unprimeable number, because it can be changed into a prime (65371147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22572 + ... + 25302.

It is an arithmetic number, because the mean of its divisors is an integer number (5573280).

Almost surely, 2^65371947 is an apocalyptic number.

65371947 is a deficient number, since it is larger than the sum of its proper divisors (23800533).

65371947 is a wasteful number, since it uses less digits than its factorization.

65371947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914.

The product of its digits is 158760, while the sum is 42.

The square root of 65371947 is about 8085.2920169899. The cubic root of 65371947 is about 402.8380391287.

The spelling of 65371947 in words is "sixty-five million, three hundred seventy-one thousand, nine hundred forty-seven".