65412657 has 8 divisors (see below), whose sum is σ = 96907680. Its totient is φ = 43608420.

The previous prime is 65412647. The next prime is 65412689. The reversal of 65412657 is 75621456.

It is a happy number.

It is not a de Polignac number, because 65412657 - 2⁸ = 65412401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65412647) 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, 1211319 + ... + 1211372.

It is an arithmetic number, because the mean of its divisors is an integer number (12113460).

Almost surely, 2^65412657 is an apocalyptic number.

It is an amenable number.

65412657 is a deficient number, since it is larger than the sum of its proper divisors (31495023).

65412657 is a wasteful number, since it uses less digits than its factorization.

65412657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422700 (or 2422694 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 65412657 is about 8087.8091594696. The cubic root of 65412657 is about 402.9216434589.

The spelling of 65412657 in words is "sixty-five million, four hundred twelve thousand, six hundred fifty-seven".