33634397 has 2 divisors, whose sum is σ = 33634398. Its totient is φ = 33634396.

The previous prime is 33634357. The next prime is 33634409. The reversal of 33634397 is 79343633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31967716 + 1666681 = 5654^2 + 1291^2 .

It is a cyclic number.

It is not a de Polignac number, because 33634397 - 2¹⁰ = 33633373 is a prime.

It is a super-2 number, since 2×33634397² = 2262545323107218, which contains 22 as substring.

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 33634397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33634357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16817198 + 16817199.

It is an arithmetic number, because the mean of its divisors is an integer number (16817199).

Almost surely, 2^33634397 is an apocalyptic number.

It is an amenable number.

33634397 is a deficient number, since it is larger than the sum of its proper divisors (1).

33634397 is an equidigital number, since it uses as much as digits as its factorization.

33634397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 38.

The square root of 33634397 is about 5799.5169626444. The cubic root of 33634397 is about 322.7958049550.

The spelling of 33634397 in words is "thirty-three million, six hundred thirty-four thousand, three hundred ninety-seven".