77289741 has 16 divisors (see below), whose sum is σ = 116665920. Its totient is φ = 50553360.

The previous prime is 77289691. The next prime is 77289743. The reversal of 77289741 is 14798277.

It is a happy number.

It is not a de Polignac number, because 77289741 - 2⁷ = 77289613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77289743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25575 + ... + 28436.

It is an arithmetic number, because the mean of its divisors is an integer number (7291620).

Almost surely, 2^77289741 is an apocalyptic number.

It is an amenable number.

77289741 is a deficient number, since it is larger than the sum of its proper divisors (39376179).

77289741 is a wasteful number, since it uses less digits than its factorization.

77289741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54073 (or 54067 counting only the distinct ones).

The product of its digits is 197568, while the sum is 45.

The square root of 77289741 is about 8791.4584114355. The cubic root of 77289741 is about 425.9650338291.

The spelling of 77289741 in words is "seventy-seven million, two hundred eighty-nine thousand, seven hundred forty-one".