77617441 has 8 divisors (see below), whose sum is σ = 84768768. Its totient is φ = 70482000.

The previous prime is 77617411. The next prime is 77617471. The reversal of 77617441 is 14471677.

It is an interprime number because it is at equal distance from previous prime (77617411) and next prime (77617471).

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

It is a cyclic number.

It is not a de Polignac number, because 77617441 - 2⁷ = 77617313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77617441.

It is not an unprimeable number, because it can be changed into a prime (77617411) 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, 7776 + ... + 14686.

It is an arithmetic number, because the mean of its divisors is an integer number (10596096).

Almost surely, 2^77617441 is an apocalyptic number.

It is an amenable number.

77617441 is a deficient number, since it is larger than the sum of its proper divisors (7151327).

77617441 is a wasteful number, since it uses less digits than its factorization.

77617441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7943.

The product of its digits is 32928, while the sum is 37.

The square root of 77617441 is about 8810.0761063682. The cubic root of 77617441 is about 426.5661999643.

The spelling of 77617441 in words is "seventy-seven million, six hundred seventeen thousand, four hundred forty-one".