77315345 has 8 divisors (see below), whose sum is σ = 92845440. Its totient is φ = 61807600.

The previous prime is 77315341. The next prime is 77315347. The reversal of 77315345 is 54351377.

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

It is not a de Polignac number, because 77315345 - 2² = 77315341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77315341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3320 + ... + 12870.

It is an arithmetic number, because the mean of its divisors is an integer number (11605680).

Almost surely, 2^77315345 is an apocalyptic number.

It is an amenable number.

77315345 is a deficient number, since it is larger than the sum of its proper divisors (15530095).

77315345 is a wasteful number, since it uses less digits than its factorization.

77315345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11175.

The product of its digits is 44100, while the sum is 35.

The square root of 77315345 is about 8792.9144770093. The cubic root of 77315345 is about 426.0120655329.

The spelling of 77315345 in words is "seventy-seven million, three hundred fifteen thousand, three hundred forty-five".