71794531 has 2 divisors, whose sum is σ = 71794532. Its totient is φ = 71794530.

The previous prime is 71794501. The next prime is 71794571. The reversal of 71794531 is 13549717.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71794531 is a prime.

It is a super-2 number, since 2×71794531² = 10308909363019922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71794501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35897265 + 35897266.

It is an arithmetic number, because the mean of its divisors is an integer number (35897266).

Almost surely, 2^71794531 is an apocalyptic number.

71794531 is a deficient number, since it is larger than the sum of its proper divisors (1).

71794531 is an equidigital number, since it uses as much as digits as its factorization.

71794531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 71794531 is about 8473.1653471415. The cubic root of 71794531 is about 415.6206535509.

The spelling of 71794531 in words is "seventy-one million, seven hundred ninety-four thousand, five hundred thirty-one".