71472311 has 4 divisors (see below), whose sum is σ = 71490072. Its totient is φ = 71454552.

The previous prime is 71472283. The next prime is 71472337. The reversal of 71472311 is 11327417.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11327417 = 353 ⋅32089.

It is a cyclic number.

It is not a de Polignac number, because 71472311 - 2¹⁰ = 71471287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71472361) 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, 365 + ... + 11961.

It is an arithmetic number, because the mean of its divisors is an integer number (17872518).

Almost surely, 2^71472311 is an apocalyptic number.

71472311 is a deficient number, since it is larger than the sum of its proper divisors (17761).

71472311 is a wasteful number, since it uses less digits than its factorization.

71472311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17760.

The product of its digits is 1176, while the sum is 26.

The square root of 71472311 is about 8454.1298192067. The cubic root of 71472311 is about 414.9979406682.

Adding to 71472311 its reverse (11327417), we get a palindrome (82799728).

The spelling of 71472311 in words is "seventy-one million, four hundred seventy-two thousand, three hundred eleven".