71951411 has 4 divisors (see below), whose sum is σ = 82230192. Its totient is φ = 61672632.

The previous prime is 71951393. The next prime is 71951431. The reversal of 71951411 is 11415917.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11415917 = 41 ⋅278437.

It is not a de Polignac number, because 71951411 - 2¹⁴ = 71935027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71951431) 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, 5139380 + ... + 5139393.

It is an arithmetic number, because the mean of its divisors is an integer number (20557548).

Almost surely, 2^71951411 is an apocalyptic number.

71951411 is a deficient number, since it is larger than the sum of its proper divisors (10278781).

71951411 is a wasteful number, since it uses less digits than its factorization.

71951411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10278780.

The product of its digits is 1260, while the sum is 29.

The square root of 71951411 is about 8482.4177567484. The cubic root of 71951411 is about 415.9231609652.

The spelling of 71951411 in words is "seventy-one million, nine hundred fifty-one thousand, four hundred eleven".