516609077 has 4 divisors (see below), whose sum is σ = 516697536. Its totient is φ = 516520620.

The previous prime is 516609043. The next prime is 516609091. The reversal of 516609077 is 770906615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 770906615 = 5 ⋅154181323.

It is a cyclic number.

It is not a de Polignac number, because 516609077 - 2⁸ = 516608821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516609377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34799 + ... + 47372.

It is an arithmetic number, because the mean of its divisors is an integer number (129174384).

Almost surely, 2^516609077 is an apocalyptic number.

It is an amenable number.

516609077 is a deficient number, since it is larger than the sum of its proper divisors (88459).

516609077 is an equidigital number, since it uses as much as digits as its factorization.

516609077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88458.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 516609077 is about 22729.0359892363. The cubic root of 516609077 is about 802.3933933819.

The spelling of 516609077 in words is "five hundred sixteen million, six hundred nine thousand, seventy-seven".