35457221 has 2 divisors, whose sum is σ = 35457222. Its totient is φ = 35457220.

The previous prime is 35457209. The next prime is 35457229. The reversal of 35457221 is 12275453.

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., 31516996 + 3940225 = 5614^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 35457221 - 2⁶ = 35457157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_2173097 and since 35457221 and 2173097 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35457229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17728610 + 17728611.

It is an arithmetic number, because the mean of its divisors is an integer number (17728611).

Almost surely, 2^35457221 is an apocalyptic number.

It is an amenable number.

35457221 is a deficient number, since it is larger than the sum of its proper divisors (1).

35457221 is an equidigital number, since it uses as much as digits as its factorization.

35457221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 35457221 is about 5954.5966278162. The cubic root of 35457221 is about 328.5248543491.

It can be divided in two parts, 354 and 57221, that added together give a palindrome (57575).

The spelling of 35457221 in words is "thirty-five million, four hundred fifty-seven thousand, two hundred twenty-one".