77200230 has 128 divisors (see below), whose sum is σ = 213995520. Its totient is φ = 17694720.

The previous prime is 77200229. The next prime is 77200243. The reversal of 77200230 is 3200277.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77200197 and 77200206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 300262 + ... + 300518.

It is an arithmetic number, because the mean of its divisors is an integer number (1671840).

Almost surely, 2^77200230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77200230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106997760).

77200230 is an abundant number, since it is smaller than the sum of its proper divisors (136795290).

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

77200230 is a wasteful number, since it uses less digits than its factorization.

77200230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334.

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 77200230 is about 8786.3661430651. The cubic root of 77200230 is about 425.8005303892.

The spelling of 77200230 in words is "seventy-seven million, two hundred thousand, two hundred thirty".