76745563 has 4 divisors (see below), whose sum is σ = 78617448. Its totient is φ = 74873680.

The previous prime is 76745561. The next prime is 76745567. The reversal of 76745563 is 36554767.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36554767 = 47 ⋅777761.

It is a cyclic number.

It is not a de Polignac number, because 76745563 - 2¹ = 76745561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76745561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935881 + ... + 935962.

It is an arithmetic number, because the mean of its divisors is an integer number (19654362).

Almost surely, 2^76745563 is an apocalyptic number.

76745563 is a deficient number, since it is larger than the sum of its proper divisors (1871885).

76745563 is a wasteful number, since it uses less digits than its factorization.

76745563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871884.

The product of its digits is 529200, while the sum is 43.

The square root of 76745563 is about 8760.4544973420. The cubic root of 76745563 is about 424.9629734756.

The spelling of 76745563 in words is "seventy-six million, seven hundred forty-five thousand, five hundred sixty-three".