71424273 has 8 divisors (see below), whose sum is σ = 95273536. Its totient is φ = 47595600.

The previous prime is 71424263. The next prime is 71424281. The reversal of 71424273 is 37242417.

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

It is not a de Polignac number, because 71424273 - 2⁴ = 71424257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71424273.

It is not an unprimeable number, because it can be changed into a prime (71424203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7143 + ... + 13923.

It is an arithmetic number, because the mean of its divisors is an integer number (11909192).

Almost surely, 2^71424273 is an apocalyptic number.

It is an amenable number.

71424273 is a deficient number, since it is larger than the sum of its proper divisors (23849263).

71424273 is a wasteful number, since it uses less digits than its factorization.

71424273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10295.

The product of its digits is 9408, while the sum is 30.

The square root of 71424273 is about 8451.2882449956. The cubic root of 71424273 is about 414.9049436326.

The spelling of 71424273 in words is "seventy-one million, four hundred twenty-four thousand, two hundred seventy-three".