72034565 has 8 divisors (see below), whose sum is σ = 86528760. Its totient is φ = 57569472.

The previous prime is 72034531. The next prime is 72034601. The reversal of 72034565 is 56543027.

It can be written as a sum of positive squares in 4 ways, for example, as 10975969 + 61058596 = 3313^2 + 7814^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72034565 - 2²² = 67840261 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1394 + ... + 12083.

It is an arithmetic number, because the mean of its divisors is an integer number (10816095).

Almost surely, 2^72034565 is an apocalyptic number.

It is an amenable number.

72034565 is a deficient number, since it is larger than the sum of its proper divisors (14494195).

72034565 is a wasteful number, since it uses less digits than its factorization.

72034565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14551.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 72034565 is about 8487.3178920081. The cubic root of 72034565 is about 416.0833262725.

The spelling of 72034565 in words is "seventy-two million, thirty-four thousand, five hundred sixty-five".