65276964 has 36 divisors (see below), whose sum is σ = 165257820. Its totient is φ = 21725760.

The previous prime is 65276947. The next prime is 65276969. The reversal of 65276964 is 46967256.

65276964 is a `hidden beast` number, since 6 + 527 + 69 + 64 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26936100 + 38340864 = 5190^2 + 6192^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×65276964² = 8522164058114592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65276969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37342 + ... + 39050.

It is an arithmetic number, because the mean of its divisors is an integer number (4590495).

Almost surely, 2^65276964 is an apocalyptic number.

It is an amenable number.

65276964 is an abundant number, since it is smaller than the sum of its proper divisors (99980856).

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

65276964 is a wasteful number, since it uses less digits than its factorization.

65276964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780 (or 2775 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 65276964 is about 8079.4160680089. The cubic root of 65276964 is about 402.6428416796.

The spelling of 65276964 in words is "sixty-five million, two hundred seventy-six thousand, nine hundred sixty-four".