71618967 has 12 divisors (see below), whose sum is σ = 118228240. Its totient is φ = 40925088.

The previous prime is 71618933. The next prime is 71618969. The reversal of 71618967 is 76981617.

It is not a de Polignac number, because 71618967 - 2¹² = 71614871 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 (71618969) 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, 568342 + ... + 568467.

Almost surely, 2^71618967 is an apocalyptic number.

71618967 is a deficient number, since it is larger than the sum of its proper divisors (46609273).

71618967 is a wasteful number, since it uses less digits than its factorization.

71618967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136822 (or 1136819 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 71618967 is about 8462.7990050574. The cubic root of 71618967 is about 415.2815953051.

It can be divided in two parts, 716 and 18967, that added together give a 9-th power (19683 = 3⁹).

The spelling of 71618967 in words is "seventy-one million, six hundred eighteen thousand, nine hundred sixty-seven".