77914225 has 24 divisors (see below), whose sum is σ = 101511360. Its totient is φ = 59209920.

The previous prime is 77914223. The next prime is 77914259. The reversal of 77914225 is 52241977.

It is not a de Polignac number, because 77914225 - 2¹ = 77914223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77914223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102547 + ... + 103303.

It is an arithmetic number, because the mean of its divisors is an integer number (4229640).

Almost surely, 2^77914225 is an apocalyptic number.

It is an amenable number.

77914225 is a deficient number, since it is larger than the sum of its proper divisors (23597135).

77914225 is a wasteful number, since it uses less digits than its factorization.

77914225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 964 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 77914225 is about 8826.9034774376. The cubic root of 77914225 is about 427.1091922210.

The spelling of 77914225 in words is "seventy-seven million, nine hundred fourteen thousand, two hundred twenty-five".