53704397 has 2 divisors, whose sum is σ = 53704398. Its totient is φ = 53704396.

The previous prime is 53704351. The next prime is 53704429. The reversal of 53704397 is 79340735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36348841 + 17355556 = 6029^2 + 4166^2 .

It is a cyclic number.

It is not a de Polignac number, because 53704397 - 2¹⁶ = 53638861 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53704397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53704327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26852198 + 26852199.

It is an arithmetic number, because the mean of its divisors is an integer number (26852199).

Almost surely, 2^53704397 is an apocalyptic number.

It is an amenable number.

53704397 is a deficient number, since it is larger than the sum of its proper divisors (1).

53704397 is an equidigital number, since it uses as much as digits as its factorization.

53704397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 53704397 is about 7328.3283905677. The cubic root of 53704397 is about 377.2853555150.

The spelling of 53704397 in words is "fifty-three million, seven hundred four thousand, three hundred ninety-seven".