71227473 has 16 divisors (see below), whose sum is σ = 96048000. Its totient is φ = 46949760.

The previous prime is 71227469. The next prime is 71227477. The reversal of 71227473 is 37472217.

It is an interprime number because it is at equal distance from previous prime (71227469) and next prime (71227477).

It is not a de Polignac number, because 71227473 - 2² = 71227469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71227477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136453 + ... + 136973.

It is an arithmetic number, because the mean of its divisors is an integer number (6003000).

Almost surely, 2^71227473 is an apocalyptic number.

It is an amenable number.

71227473 is a deficient number, since it is larger than the sum of its proper divisors (24820527).

71227473 is a wasteful number, since it uses less digits than its factorization.

71227473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952.

The product of its digits is 16464, while the sum is 33.

The square root of 71227473 is about 8439.6370182609. The cubic root of 71227473 is about 414.5235214663.

The spelling of 71227473 in words is "seventy-one million, two hundred twenty-seven thousand, four hundred seventy-three".