77486545 has 8 divisors (see below), whose sum is σ = 93239424. Its totient is φ = 61818864.

The previous prime is 77486491. The next prime is 77486551. The reversal of 77486545 is 54568477.

It is a happy number.

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 77486545 - 2¹³ = 77478353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77486495 and 77486504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19279 + ... + 22948.

It is an arithmetic number, because the mean of its divisors is an integer number (11654928).

Almost surely, 2^77486545 is an apocalyptic number.

It is an amenable number.

77486545 is a deficient number, since it is larger than the sum of its proper divisors (15752879).

77486545 is a wasteful number, since it uses less digits than its factorization.

77486545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42599.

The product of its digits is 940800, while the sum is 46.

The square root of 77486545 is about 8802.6442050102. The cubic root of 77486545 is about 426.3262743940.

The spelling of 77486545 in words is "seventy-seven million, four hundred eighty-six thousand, five hundred forty-five".