77485249 has 8 divisors (see below), whose sum is σ = 82406240. Its totient is φ = 72648576.

The previous prime is 77485223. The next prime is 77485253. The reversal of 77485249 is 94258477.

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 77485249 - 2¹⁷ = 77354177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77485199 and 77485208.

It is not an unprimeable number, because it can be changed into a prime (77485279) 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, 19179 + ... + 22864.

It is an arithmetic number, because the mean of its divisors is an integer number (10300780).

Almost surely, 2^77485249 is an apocalyptic number.

It is an amenable number.

77485249 is a deficient number, since it is larger than the sum of its proper divisors (4920991).

77485249 is a wasteful number, since it uses less digits than its factorization.

77485249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42159.

The product of its digits is 564480, while the sum is 46.

The square root of 77485249 is about 8802.5705904582. The cubic root of 77485249 is about 426.3238975430.

The spelling of 77485249 in words is "seventy-seven million, four hundred eighty-five thousand, two hundred forty-nine".