71264357 has 4 divisors (see below), whose sum is σ = 75456396. Its totient is φ = 67072320.

The previous prime is 71264317. The next prime is 71264359. The reversal of 71264357 is 75346217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75346217 = 47 ⋅1603111.

It can be written as a sum of positive squares in 2 ways, for example, as 27888961 + 43375396 = 5281^2 + 6586^2 .

It is a cyclic number.

It is not a de Polignac number, because 71264357 - 2⁸ = 71264101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71264359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2095994 + ... + 2096027.

It is an arithmetic number, because the mean of its divisors is an integer number (18864099).

Almost surely, 2^71264357 is an apocalyptic number.

It is an amenable number.

71264357 is a deficient number, since it is larger than the sum of its proper divisors (4192039).

71264357 is a wasteful number, since it uses less digits than its factorization.

71264357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4192038.

The product of its digits is 35280, while the sum is 35.

The square root of 71264357 is about 8441.8219005141. The cubic root of 71264357 is about 414.5950605629.

The spelling of 71264357 in words is "seventy-one million, two hundred sixty-four thousand, three hundred fifty-seven".