65320371 has 8 divisors (see below), whose sum is σ = 96770960. Its totient is φ = 43546896.

The previous prime is 65320369. The next prime is 65320427. The reversal of 65320371 is 17302356.

It is a happy number.

65320371 is a `hidden beast` number, since 653 + 2 + 0 + 3 + 7 + 1 = 666.

It is not a de Polignac number, because 65320371 - 2¹ = 65320369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2419273 = 65320371 / (6 + 5 + 3 + 2 + 0 + 3 + 7 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65320331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1209610 + ... + 1209663.

It is an arithmetic number, because the mean of its divisors is an integer number (12096370).

Almost surely, 2^65320371 is an apocalyptic number.

65320371 is a deficient number, since it is larger than the sum of its proper divisors (31450589).

65320371 is a wasteful number, since it uses less digits than its factorization.

65320371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419282 (or 2419276 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 65320371 is about 8082.1018924535. The cubic root of 65320371 is about 402.7320699167.

The spelling of 65320371 in words is "sixty-five million, three hundred twenty thousand, three hundred seventy-one".