72261711 has 24 divisors (see below), whose sum is σ = 106557360. Its totient is φ = 47177856.

The previous prime is 72261691. The next prime is 72261719. The reversal of 72261711 is 11716227.

It is not a de Polignac number, because 72261711 - 2⁷ = 72261583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72261719) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176475 + ... + 176883.

It is an arithmetic number, because the mean of its divisors is an integer number (4439890).

Almost surely, 2^72261711 is an apocalyptic number.

72261711 is a deficient number, since it is larger than the sum of its proper divisors (34295649).

72261711 is a wasteful number, since it uses less digits than its factorization.

72261711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 772 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 72261711 is about 8500.6888544400. The cubic root of 72261711 is about 416.5202114259.

Adding to 72261711 its reverse (11716227), we get a palindrome (83977938).

The spelling of 72261711 in words is "seventy-two million, two hundred sixty-one thousand, seven hundred eleven".