71406693 has 12 divisors (see below), whose sum is σ = 108571840. Its totient is φ = 45098856.

The previous prime is 71406691. The next prime is 71406721. The reversal of 71406693 is 39660417.

It is not a de Polignac number, because 71406693 - 2¹ = 71406691 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 (71406691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208621 + ... + 208962.

Almost surely, 2^71406693 is an apocalyptic number.

It is an amenable number.

71406693 is a deficient number, since it is larger than the sum of its proper divisors (37165147).

71406693 is a wasteful number, since it uses less digits than its factorization.

71406693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417608 (or 417605 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 71406693 is about 8450.2481028666. The cubic root of 71406693 is about 414.8708999893.

The spelling of 71406693 in words is "seventy-one million, four hundred six thousand, six hundred ninety-three".