71266993 has 8 divisors (see below), whose sum is σ = 83181312. Its totient is φ = 59786016.

The previous prime is 71266973. The next prime is 71266997. The reversal of 71266993 is 39966217.

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

It is a cyclic number.

It is not a de Polignac number, because 71266993 - 2⁵ = 71266961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71266997) 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, 107980 + ... + 108637.

It is an arithmetic number, because the mean of its divisors is an integer number (10397664).

Almost surely, 2^71266993 is an apocalyptic number.

It is an amenable number.

71266993 is a deficient number, since it is larger than the sum of its proper divisors (11914319).

71266993 is a wasteful number, since it uses less digits than its factorization.

71266993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216671.

The product of its digits is 122472, while the sum is 43.

The square root of 71266993 is about 8441.9780265054. The cubic root of 71266993 is about 414.6001723240.

The spelling of 71266993 in words is "seventy-one million, two hundred sixty-six thousand, nine hundred ninety-three".