77321676 has 48 divisors (see below), whose sum is σ = 188987904. Its totient is φ = 24558336.

The previous prime is 77321641. The next prime is 77321677. The reversal of 77321676 is 67612377.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (77321677) 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, 119185 + ... + 119831.

It is an arithmetic number, because the mean of its divisors is an integer number (3937248).

Almost surely, 2^77321676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77321676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94493952).

77321676 is an abundant number, since it is smaller than the sum of its proper divisors (111666228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77321676 is a wasteful number, since it uses less digits than its factorization.

77321676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1108 counting only the distinct ones).

The product of its digits is 74088, while the sum is 39.

The square root of 77321676 is about 8793.2744754159. The cubic root of 77321676 is about 426.0236932754.

The spelling of 77321676 in words is "seventy-seven million, three hundred twenty-one thousand, six hundred seventy-six".