65397460 has 48 divisors (see below), whose sum is σ = 141804432. Its totient is φ = 25318400.

The previous prime is 65397457. The next prime is 65397473. The reversal of 65397460 is 6479356.

It can be written as a sum of positive squares in 8 ways, for example, as 2702736 + 62694724 = 1644^2 + 7918^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141630 + ... + 142090.

It is an arithmetic number, because the mean of its divisors is an integer number (2954259).

Almost surely, 2^65397460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65397460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70902216).

65397460 is an abundant number, since it is smaller than the sum of its proper divisors (76406972).

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

65397460 is a wasteful number, since it uses less digits than its factorization.

65397460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 65397460 is about 8086.8696044885. The cubic root of 65397460 is about 402.8904381094.

The spelling of 65397460 in words is "sixty-five million, three hundred ninety-seven thousand, four hundred sixty".