77256746 has 8 divisors (see below), whose sum is σ = 132440160. Its totient is φ = 33110028.

The previous prime is 77256737. The next prime is 77256749. The reversal of 77256746 is 64765277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 77256697 and 77256706.

It is not an unprimeable number, because it can be changed into a prime (77256749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2759156 + ... + 2759183.

It is an arithmetic number, because the mean of its divisors is an integer number (16555020).

Almost surely, 2^77256746 is an apocalyptic number.

77256746 is a deficient number, since it is larger than the sum of its proper divisors (55183414).

77256746 is a wasteful number, since it uses less digits than its factorization.

77256746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5518348.

The product of its digits is 493920, while the sum is 44.

The square root of 77256746 is about 8789.5816737772. The cubic root of 77256746 is about 425.9044103597.

The spelling of 77256746 in words is "seventy-seven million, two hundred fifty-six thousand, seven hundred forty-six".