64302772 has 12 divisors (see below), whose sum is σ = 119149380. Its totient is φ = 30260096.

The previous prime is 64302769. The next prime is 64302803. The reversal of 64302772 is 27720346.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25040016 + 39262756 = 5004^2 + 6266^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472747 + ... + 472882.

It is an arithmetic number, because the mean of its divisors is an integer number (9929115).

Almost surely, 2^64302772 is an apocalyptic number.

It is an amenable number.

64302772 is a deficient number, since it is larger than the sum of its proper divisors (54846608).

64302772 is a wasteful number, since it uses less digits than its factorization.

64302772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945650 (or 945648 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 64302772 is about 8018.9009221963. The cubic root of 64302772 is about 400.6297829133.

The spelling of 64302772 in words is "sixty-four million, three hundred two thousand, seven hundred seventy-two".