65403772 has 12 divisors (see below), whose sum is σ = 130807600. Its totient is φ = 28030176.

The previous prime is 65403763. The next prime is 65403797. The reversal of 65403772 is 27730456.

It is a happy number.

65403772 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1167897 + ... + 1167952.

Almost surely, 2^65403772 is an apocalyptic number.

It is an amenable number.

65403772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65403772 is a wasteful number, since it uses less digits than its factorization.

65403772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335860 (or 2335858 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 65403772 is about 8087.2598573312. The cubic root of 65403772 is about 402.9033996863.

The spelling of 65403772 in words is "sixty-five million, four hundred three thousand, seven hundred seventy-two".