514947891 has 8 divisors (see below), whose sum is σ = 688806144. Its totient is φ = 342194120.

The previous prime is 514947883. The next prime is 514947931. The reversal of 514947891 is 198749415.

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 514947891 - 2³ = 514947883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 514947891.

It is not an unprimeable number, because it can be changed into a prime (514947871) 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, 275031 + ... + 276896.

It is an arithmetic number, because the mean of its divisors is an integer number (86100768).

Almost surely, 2^514947891 is an apocalyptic number.

514947891 is a deficient number, since it is larger than the sum of its proper divisors (173858253).

514947891 is a wasteful number, since it uses less digits than its factorization.

514947891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552241.

The product of its digits is 362880, while the sum is 48.

The square root of 514947891 is about 22692.4633083321. The cubic root of 514947891 is about 801.5324226227.

The spelling of 514947891 in words is "five hundred fourteen million, nine hundred forty-seven thousand, eight hundred ninety-one".