77411730 has 64 divisors (see below), whose sum is σ = 209692800. Its totient is φ = 18117120.

The previous prime is 77411729. The next prime is 77411777. The reversal of 77411730 is 3711477.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5526 + ... + 13614.

It is an arithmetic number, because the mean of its divisors is an integer number (3276450).

Almost surely, 2^77411730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77411730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104846400).

77411730 is an abundant number, since it is smaller than the sum of its proper divisors (132281070).

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

77411730 is a wasteful number, since it uses less digits than its factorization.

77411730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8139.

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 77411730 is about 8798.3936033801. The cubic root of 77411730 is about 426.1890210122.

The spelling of 77411730 in words is "seventy-seven million, four hundred eleven thousand, seven hundred thirty".