71480421 has 16 divisors (see below), whose sum is σ = 106142400. Its totient is φ = 47543184.

The previous prime is 71480419. The next prime is 71480429. The reversal of 71480421 is 12408417.

It is not a de Polignac number, because 71480421 - 2¹ = 71480419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71480429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9775 + ... + 15443.

It is an arithmetic number, because the mean of its divisors is an integer number (6633900).

Almost surely, 2^71480421 is an apocalyptic number.

It is an amenable number.

71480421 is a deficient number, since it is larger than the sum of its proper divisors (34661979).

71480421 is a wasteful number, since it uses less digits than its factorization.

71480421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6145 (or 6139 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 71480421 is about 8454.6094528370. The cubic root of 71480421 is about 415.0136367513.

Adding to 71480421 its reverse (12408417), we get a palindrome (83888838).

The spelling of 71480421 in words is "seventy-one million, four hundred eighty thousand, four hundred twenty-one".