77628338 has 8 divisors (see below), whose sum is σ = 122571120. Its totient is φ = 36771300.

The previous prime is 77628337. The next prime is 77628359. The reversal of 77628338 is 83382677.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77628337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021388 + ... + 1021463.

It is an arithmetic number, because the mean of its divisors is an integer number (15321390).

Almost surely, 2^77628338 is an apocalyptic number.

77628338 is a deficient number, since it is larger than the sum of its proper divisors (44942782).

77628338 is a wasteful number, since it uses less digits than its factorization.

77628338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042872.

The product of its digits is 338688, while the sum is 44.

The square root of 77628338 is about 8810.6945242699. The cubic root of 77628338 is about 426.5861614331.

The spelling of 77628338 in words is "seventy-seven million, six hundred twenty-eight thousand, three hundred thirty-eight".