71423401 has 8 divisors (see below), whose sum is σ = 81682560. Its totient is φ = 61178208.

The previous prime is 71423381. The next prime is 71423423. The reversal of 71423401 is 10432417.

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

It is not a de Polignac number, because 71423401 - 2¹⁷ = 71292329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71423461) 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, 12165 + ... + 17053.

It is an arithmetic number, because the mean of its divisors is an integer number (10210320).

Almost surely, 2^71423401 is an apocalyptic number.

It is an amenable number.

71423401 is a deficient number, since it is larger than the sum of its proper divisors (10259159).

71423401 is a wasteful number, since it uses less digits than its factorization.

71423401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6983.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 71423401 is about 8451.2366550701. The cubic root of 71423401 is about 414.9032551376.

Adding to 71423401 its reverse (10432417), we get a palindrome (81855818).

It can be divided in two parts, 71423 and 401, that added together give a square (71824 = 268²).

The spelling of 71423401 in words is "seventy-one million, four hundred twenty-three thousand, four hundred one".