77374747 has 8 divisors (see below), whose sum is σ = 77962544. Its totient is φ = 76789728.

The previous prime is 77374741. The next prime is 77374751. The reversal of 77374747 is 74747377.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77374747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77374697 and 77374706.

It is not an unprimeable number, because it can be changed into a prime (77374741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105193 + ... + 105925.

It is an arithmetic number, because the mean of its divisors is an integer number (9745318).

Almost surely, 2^77374747 is an apocalyptic number.

77374747 is a deficient number, since it is larger than the sum of its proper divisors (587797).

77374747 is a wasteful number, since it uses less digits than its factorization.

77374747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389.

The product of its digits is 806736, while the sum is 46.

The square root of 77374747 is about 8796.2916618311. The cubic root of 77374747 is about 426.1211404328.

The spelling of 77374747 in words is "seventy-seven million, three hundred seventy-four thousand, seven hundred forty-seven".