77327347 has 4 divisors (see below), whose sum is σ = 78638040. Its totient is φ = 76016656.

The previous prime is 77327303. The next prime is 77327381. The reversal of 77327347 is 74372377.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74372377 = 47 ⋅1582391.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77327347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77327947) 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, 655258 + ... + 655375.

It is an arithmetic number, because the mean of its divisors is an integer number (19659510).

Almost surely, 2^77327347 is an apocalyptic number.

77327347 is a deficient number, since it is larger than the sum of its proper divisors (1310693).

77327347 is a wasteful number, since it uses less digits than its factorization.

77327347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310692.

The product of its digits is 172872, while the sum is 40.

The square root of 77327347 is about 8793.5969318590. The cubic root of 77327347 is about 426.0341082993.

The spelling of 77327347 in words is "seventy-seven million, three hundred twenty-seven thousand, three hundred forty-seven".