77315441 has 8 divisors (see below), whose sum is σ = 89057280. Its totient is φ = 65747808.

The previous prime is 77315369. The next prime is 77315449. The reversal of 77315441 is 14451377.

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

It is not a de Polignac number, because 77315441 - 2¹⁸ = 77053297 is a prime.

It is a super-3 number, since 3×77315441³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77315398 and 77315407.

It is not an unprimeable number, because it can be changed into a prime (77315449) 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, 42596 + ... + 44373.

It is an arithmetic number, because the mean of its divisors is an integer number (11132160).

Almost surely, 2^77315441 is an apocalyptic number.

It is an amenable number.

77315441 is a deficient number, since it is larger than the sum of its proper divisors (11741839).

77315441 is a wasteful number, since it uses less digits than its factorization.

77315441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87103.

The product of its digits is 11760, while the sum is 32.

The square root of 77315441 is about 8792.9199359485. The cubic root of 77315441 is about 426.0122418547.

The spelling of 77315441 in words is "seventy-seven million, three hundred fifteen thousand, four hundred forty-one".