71974853 has 2 divisors, whose sum is σ = 71974854. Its totient is φ = 71974852.

The previous prime is 71974823. The next prime is 71974871. The reversal of 71974853 is 35847917.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40424164 + 31550689 = 6358^2 + 5617^2 .

It is a cyclic number.

It is not a de Polignac number, because 71974853 - 2⁶ = 71974789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71974823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35987426 + 35987427.

It is an arithmetic number, because the mean of its divisors is an integer number (35987427).

Almost surely, 2^71974853 is an apocalyptic number.

It is an amenable number.

71974853 is a deficient number, since it is larger than the sum of its proper divisors (1).

71974853 is an equidigital number, since it uses as much as digits as its factorization.

71974853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 71974853 is about 8483.7994436455. The cubic root of 71974853 is about 415.9683257596.

It can be divided in two parts, 71974 and 853, that added together give a palindrome (72827).

The spelling of 71974853 in words is "seventy-one million, nine hundred seventy-four thousand, eight hundred fifty-three".