516177997 has 8 divisors (see below), whose sum is σ = 544107200. Its totient is φ = 488325024.

The previous prime is 516177979. The next prime is 516178037. The reversal of 516177997 is 799771615.

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 516177997 - 2¹⁹ = 515653709 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 (516177197) 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, 4872 + ... + 32497.

It is an arithmetic number, because the mean of its divisors is an integer number (68013400).

Almost surely, 2^516177997 is an apocalyptic number.

It is an amenable number.

516177997 is a deficient number, since it is larger than the sum of its proper divisors (27929203).

516177997 is a wasteful number, since it uses less digits than its factorization.

516177997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38115.

The product of its digits is 833490, while the sum is 52.

The square root of 516177997 is about 22719.5509858800. The cubic root of 516177997 is about 802.1701478539.

The spelling of 516177997 in words is "five hundred sixteen million, one hundred seventy-seven thousand, nine hundred ninety-seven".