33400769 has 2 divisors, whose sum is σ = 33400770. Its totient is φ = 33400768.

The previous prime is 33400753. The next prime is 33400793. The reversal of 33400769 is 96700433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20584369 + 12816400 = 4537^2 + 3580^2 .

It is a cyclic number.

It is not a de Polignac number, because 33400769 - 2⁴ = 33400753 is a prime.

It is a super-2 number, since 2×33400769² = 2231222739582722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33400739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16700384 + 16700385.

It is an arithmetic number, because the mean of its divisors is an integer number (16700385).

Almost surely, 2^33400769 is an apocalyptic number.

It is an amenable number.

33400769 is a deficient number, since it is larger than the sum of its proper divisors (1).

33400769 is an equidigital number, since it uses as much as digits as its factorization.

33400769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 33400769 is about 5779.3398411929. The cubic root of 33400769 is about 322.0466767462.

The spelling of 33400769 in words is "thirty-three million, four hundred thousand, seven hundred sixty-nine".