77032245 has 16 divisors (see below), whose sum is σ = 125092800. Its totient is φ = 40470144.

The previous prime is 77032211. The next prime is 77032247. The reversal of 77032245 is 54223077.

It is not a de Polignac number, because 77032245 - 2⁶ = 77032181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77032247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37320 + ... + 39329.

It is an arithmetic number, because the mean of its divisors is an integer number (7818300).

Almost surely, 2^77032245 is an apocalyptic number.

It is an amenable number.

77032245 is a deficient number, since it is larger than the sum of its proper divisors (48060555).

77032245 is a wasteful number, since it uses less digits than its factorization.

77032245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76724.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 77032245 is about 8776.8015244735. The cubic root of 77032245 is about 425.4914637547.

It can be divided in two parts, 77032 and 245, that added together give a palindrome (77277).

The spelling of 77032245 in words is "seventy-seven million, thirty-two thousand, two hundred forty-five".