65397456 has 50 divisors (see below), whose sum is σ = 189282962. Its totient is φ = 21798720.

The previous prime is 65397433. The next prime is 65397457. The reversal of 65397456 is 65479356.

It can be written as a sum of positive squares in only one way, i.e., 62157456 + 3240000 = 7884^2 + 1800^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65397457) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 23935 + ... + 26526.

Almost surely, 2^65397456 is an apocalyptic number.

It is an amenable number.

65397456 is an abundant number, since it is smaller than the sum of its proper divisors (123885506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65397456 is a wasteful number, since it uses less digits than its factorization.

65397456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50481 (or 50466 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 65397456 is about 8086.8693571740. The cubic root of 65397456 is about 402.8904298952.

The spelling of 65397456 in words is "sixty-five million, three hundred ninety-seven thousand, four hundred fifty-six".