77346654 has 128 divisors (see below), whose sum is σ = 209018880. Its totient is φ = 18480000.

The previous prime is 77346653. The next prime is 77346679. The reversal of 77346654 is 45664377.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77346653) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 308029 + ... + 308279.

It is an arithmetic number, because the mean of its divisors is an integer number (1632960).

Almost surely, 2^77346654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77346654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104509440).

77346654 is an abundant number, since it is smaller than the sum of its proper divisors (131672226).

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

77346654 is a wasteful number, since it uses less digits than its factorization.

77346654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326.

The product of its digits is 423360, while the sum is 42.

The square root of 77346654 is about 8794.6946507539. The cubic root of 77346654 is about 426.0695625785.

The spelling of 77346654 in words is "seventy-seven million, three hundred forty-six thousand, six hundred fifty-four".