77394513 has 8 divisors (see below), whose sum is σ = 117934528. Its totient is φ = 44225424.

The previous prime is 77394497. The next prime is 77394521. The reversal of 77394513 is 31549377.

It is a happy number.

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

It is not a de Polignac number, because 77394513 - 2⁴ = 77394497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77394553) 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, 1842706 + ... + 1842747.

It is an arithmetic number, because the mean of its divisors is an integer number (14741816).

Almost surely, 2^77394513 is an apocalyptic number.

It is an amenable number.

77394513 is a deficient number, since it is larger than the sum of its proper divisors (40540015).

77394513 is a wasteful number, since it uses less digits than its factorization.

77394513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685463.

The product of its digits is 79380, while the sum is 39.

The square root of 77394513 is about 8797.4151317305. The cubic root of 77394513 is about 426.1574226984.

The spelling of 77394513 in words is "seventy-seven million, three hundred ninety-four thousand, five hundred thirteen".