71290067 has 4 divisors (see below), whose sum is σ = 71308680. Its totient is φ = 71271456.

The previous prime is 71290057. The next prime is 71290099. The reversal of 71290067 is 76009217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76009217 = 4729 ⋅16073.

It is a cyclic number.

It is not a de Polignac number, because 71290067 - 2¹⁸ = 71027923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71290007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217 + ... + 12002.

It is an arithmetic number, because the mean of its divisors is an integer number (17827170).

Almost surely, 2^71290067 is an apocalyptic number.

71290067 is a deficient number, since it is larger than the sum of its proper divisors (18613).

71290067 is a wasteful number, since it uses less digits than its factorization.

71290067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18612.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 71290067 is about 8443.3445387477. The cubic root of 71290067 is about 414.6449123068.

The spelling of 71290067 in words is "seventy-one million, two hundred ninety thousand, sixty-seven".