71407423 has 4 divisors (see below), whose sum is σ = 72143680. Its totient is φ = 70671168.

The previous prime is 71407417. The next prime is 71407471. The reversal of 71407423 is 32470417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32470417 = 7 ⋅4638631.

It is a cyclic number.

It is not a de Polignac number, because 71407423 - 2⁹ = 71406911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71407391 and 71407400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71402423) 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, 367983 + ... + 368176.

It is an arithmetic number, because the mean of its divisors is an integer number (18035920).

Almost surely, 2^71407423 is an apocalyptic number.

71407423 is a deficient number, since it is larger than the sum of its proper divisors (736257).

71407423 is an equidigital number, since it uses as much as digits as its factorization.

71407423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736256.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 71407423 is about 8450.2912967542. The cubic root of 71407423 is about 414.8723137444.

The spelling of 71407423 in words is "seventy-one million, four hundred seven thousand, four hundred twenty-three".