77007313 has 4 divisors (see below), whose sum is σ = 77095408. Its totient is φ = 76919220.

The previous prime is 77007277. The next prime is 77007319. The reversal of 77007313 is 31370077.

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 77007313 - 2⁹ = 77006801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77007319) 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, 42723 + ... + 44488.

It is an arithmetic number, because the mean of its divisors is an integer number (19273852).

Almost surely, 2^77007313 is an apocalyptic number.

It is an amenable number.

77007313 is a deficient number, since it is larger than the sum of its proper divisors (88095).

77007313 is an equidigital number, since it uses as much as digits as its factorization.

77007313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88094.

The product of its (nonzero) digits is 3087, while the sum is 28.

The square root of 77007313 is about 8775.3810743466. The cubic root of 77007313 is about 425.4455544178.

The spelling of 77007313 in words is "seventy-seven million, seven thousand, three hundred thirteen".