77077338 has 32 divisors (see below), whose sum is σ = 174753600. Its totient is φ = 22467456.

The previous prime is 77077333. The next prime is 77077339. The reversal of 77077338 is 83377077.

It is a self number, because there is not a number n which added to its sum of digits gives 77077338.

It is not an unprimeable number, because it can be changed into a prime (77077333) 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, 24523 + ... + 27486.

It is an arithmetic number, because the mean of its divisors is an integer number (5461050).

Almost surely, 2^77077338 is an apocalyptic number.

77077338 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

77077338 is an abundant number, since it is smaller than the sum of its proper divisors (97676262).

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

77077338 is a wasteful number, since it uses less digits than its factorization.

77077338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52046.

The product of its (nonzero) digits is 172872, while the sum is 42.

The square root of 77077338 is about 8779.3700229572. The cubic root of 77077338 is about 425.5744720412.

The spelling of 77077338 in words is "seventy-seven million, seventy-seven thousand, three hundred thirty-eight".