77140750 has 32 divisors (see below), whose sum is σ = 146072160. Its totient is φ = 30500800.

The previous prime is 77140733. The next prime is 77140757. The reversal of 77140750 is 5704177.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77140757) 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 15 ways as a sum of consecutive naturals, for example, 20517 + ... + 23983.

It is an arithmetic number, because the mean of its divisors is an integer number (4564755).

Almost surely, 2^77140750 is an apocalyptic number.

77140750 is a deficient number, since it is larger than the sum of its proper divisors (68931410).

77140750 is a wasteful number, since it uses less digits than its factorization.

77140750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573 (or 3563 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 77140750 is about 8782.9807013337. The cubic root of 77140750 is about 425.6911476289.

The spelling of 77140750 in words is "seventy-seven million, one hundred forty thousand, seven hundred fifty".