71415479 has 2 divisors, whose sum is σ = 71415480. Its totient is φ = 71415478.

The previous prime is 71415431. The next prime is 71415503. The reversal of 71415479 is 97451417.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71415479 is a prime.

It is a Sophie Germain 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 (71415779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35707739 + 35707740.

It is an arithmetic number, because the mean of its divisors is an integer number (35707740).

Almost surely, 2^71415479 is an apocalyptic number.

71415479 is a deficient number, since it is larger than the sum of its proper divisors (1).

71415479 is an equidigital number, since it uses as much as digits as its factorization.

71415479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 38.

The square root of 71415479 is about 8450.7679532691. The cubic root of 71415479 is about 414.8879147633.

The spelling of 71415479 in words is "seventy-one million, four hundred fifteen thousand, four hundred seventy-nine".