71394877 has 2 divisors, whose sum is σ = 71394878. Its totient is φ = 71394876.

The previous prime is 71394871. The next prime is 71394887. The reversal of 71394877 is 77849317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70913241 + 481636 = 8421^2 + 694^2 .

It is a cyclic number.

It is not a de Polignac number, because 71394877 - 2¹¹ = 71392829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71394871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35697438 + 35697439.

It is an arithmetic number, because the mean of its divisors is an integer number (35697439).

Almost surely, 2^71394877 is an apocalyptic number.

It is an amenable number.

71394877 is a deficient number, since it is larger than the sum of its proper divisors (1).

71394877 is an equidigital number, since it uses as much as digits as its factorization.

71394877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 46.

The square root of 71394877 is about 8449.5489228716. The cubic root of 71394877 is about 414.8480151832.

It can be divided in two parts, 713948 and 77, that added together give a square (714025 = 845²).

The spelling of 71394877 in words is "seventy-one million, three hundred ninety-four thousand, eight hundred seventy-seven".