77452027 has 4 divisors (see below), whose sum is σ = 78913440. Its totient is φ = 75990616.

The previous prime is 77452019. The next prime is 77452033. The reversal of 77452027 is 72025477.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77452027 - 2³ = 77452019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77451983 and 77452001.

It is not an unprimeable number, because it can be changed into a prime (77452007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730627 + ... + 730732.

It is an arithmetic number, because the mean of its divisors is an integer number (19728360).

Almost surely, 2^77452027 is an apocalyptic number.

77452027 is a deficient number, since it is larger than the sum of its proper divisors (1461413).

77452027 is a wasteful number, since it uses less digits than its factorization.

77452027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461412.

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 77452027 is about 8800.6833257424. The cubic root of 77452027 is about 426.2629596768.

The spelling of 77452027 in words is "seventy-seven million, four hundred fifty-two thousand, twenty-seven".