71404349 has 2 divisors, whose sum is σ = 71404350. Its totient is φ = 71404348.

The previous prime is 71404283. The next prime is 71404363. The reversal of 71404349 is 94340417.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71402500 + 1849 = 8450^2 + 43^2 .

It is a cyclic number.

It is not a de Polignac number, because 71404349 - 2²⁰ = 70355773 is a prime.

It is a super-2 number, since 2×71404349² = 10197162112227602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71404049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35702174 + 35702175.

It is an arithmetic number, because the mean of its divisors is an integer number (35702175).

Almost surely, 2^71404349 is an apocalyptic number.

It is an amenable number.

71404349 is a deficient number, since it is larger than the sum of its proper divisors (1).

71404349 is an equidigital number, since it uses as much as digits as its factorization.

71404349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 71404349 is about 8450.1094075757. The cubic root of 71404349 is about 414.8663604147.

The spelling of 71404349 in words is "seventy-one million, four hundred four thousand, three hundred forty-nine".