71364431 has 2 divisors, whose sum is σ = 71364432. Its totient is φ = 71364430.

The previous prime is 71364409. The next prime is 71364439. The reversal of 71364431 is 13446317.

It is a strong prime.

It is an emirp because it is prime and its reverse (13446317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71364431 - 2²² = 67170127 is a prime.

It is a super-2 number, since 2×71364431² = 10185764023907522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71364394 and 71364403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71364439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35682215 + 35682216.

It is an arithmetic number, because the mean of its divisors is an integer number (35682216).

Almost surely, 2^71364431 is an apocalyptic number.

71364431 is a deficient number, since it is larger than the sum of its proper divisors (1).

71364431 is an equidigital number, since it uses as much as digits as its factorization.

71364431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 71364431 is about 8447.7470961198. The cubic root of 71364431 is about 414.7890368222.

The spelling of 71364431 in words is "seventy-one million, three hundred sixty-four thousand, four hundred thirty-one".