77994337 has 4 divisors (see below), whose sum is σ = 78039216. Its totient is φ = 77949460.

The previous prime is 77994331. The next prime is 77994361. The reversal of 77994337 is 73349977.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77994337 - 2¹¹ = 77992289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77994331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19723 + ... + 23344.

It is an arithmetic number, because the mean of its divisors is an integer number (19509804).

Almost surely, 2^77994337 is an apocalyptic number.

It is an amenable number.

77994337 is a deficient number, since it is larger than the sum of its proper divisors (44879).

77994337 is a wasteful number, since it uses less digits than its factorization.

77994337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44878.

The product of its digits is 1000188, while the sum is 49.

The square root of 77994337 is about 8831.4402562662. The cubic root of 77994337 is about 427.2555277203.

The spelling of 77994337 in words is "seventy-seven million, nine hundred ninety-four thousand, three hundred thirty-seven".