77532233 has 2 divisors, whose sum is σ = 77532234. Its totient is φ = 77532232.

The previous prime is 77532227. The next prime is 77532263. The reversal of 77532233 is 33223577.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44262409 + 33269824 = 6653^2 + 5768^2 .

It is a cyclic number.

It is not a de Polignac number, because 77532233 - 2¹⁴ = 77515849 is a prime.

It is a super-2 number, since 2×77532233² = 12022494307932578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77532233.

It is not a weakly prime, because it can be changed into another prime (77532263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38766116 + 38766117.

It is an arithmetic number, because the mean of its divisors is an integer number (38766117).

Almost surely, 2^77532233 is an apocalyptic number.

It is an amenable number.

77532233 is a deficient number, since it is larger than the sum of its proper divisors (1).

77532233 is an equidigital number, since it uses as much as digits as its factorization.

77532233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 32.

The square root of 77532233 is about 8805.2389518968. The cubic root of 77532233 is about 426.4100488000.

The spelling of 77532233 in words is "seventy-seven million, five hundred thirty-two thousand, two hundred thirty-three".