71423407 has 8 divisors (see below), whose sum is σ = 79080192. Its totient is φ = 63960600.

The previous prime is 71423381. The next prime is 71423423. The reversal of 71423407 is 70432417.

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

It is not a de Polignac number, because 71423407 - 2⁷ = 71423279 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 (71423467) 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, 47719 + ... + 49192.

It is an arithmetic number, because the mean of its divisors is an integer number (9885024).

Almost surely, 2^71423407 is an apocalyptic number.

71423407 is a deficient number, since it is larger than the sum of its proper divisors (7656785).

71423407 is a wasteful number, since it uses less digits than its factorization.

71423407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96989.

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

The square root of 71423407 is about 8451.2370100477. The cubic root of 71423407 is about 414.9032667558.

The spelling of 71423407 in words is "seventy-one million, four hundred twenty-three thousand, four hundred seven".