72282611 has 4 divisors (see below), whose sum is σ = 73507800. Its totient is φ = 71057424.

The previous prime is 72282547. The next prime is 72282647. The reversal of 72282611 is 11628227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72282611 - 2⁶ = 72282547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72282671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612506 + ... + 612623.

It is an arithmetic number, because the mean of its divisors is an integer number (18376950).

Almost surely, 2^72282611 is an apocalyptic number.

72282611 is a deficient number, since it is larger than the sum of its proper divisors (1225189).

72282611 is a wasteful number, since it uses less digits than its factorization.

72282611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225188.

The product of its digits is 2688, while the sum is 29.

The square root of 72282611 is about 8501.9180777046. The cubic root of 72282611 is about 416.5603637794.

The spelling of 72282611 in words is "seventy-two million, two hundred eighty-two thousand, six hundred eleven".