77303217 has 8 divisors (see below), whose sum is σ = 103112224. Its totient is φ = 51514848.

The previous prime is 77303201. The next prime is 77303227. The reversal of 77303217 is 71230377.

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

It is not a de Polignac number, because 77303217 - 2⁴ = 77303201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77303227) 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, 9693 + ... + 15765.

It is an arithmetic number, because the mean of its divisors is an integer number (12889028).

Almost surely, 2^77303217 is an apocalyptic number.

It is an amenable number.

77303217 is a deficient number, since it is larger than the sum of its proper divisors (25809007).

77303217 is a wasteful number, since it uses less digits than its factorization.

77303217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10319.

The product of its (nonzero) digits is 6174, while the sum is 30.

The square root of 77303217 is about 8792.2248037684. The cubic root of 77303217 is about 425.9897890387.

The spelling of 77303217 in words is "seventy-seven million, three hundred three thousand, two hundred seventeen".