514721387 has 6 divisors (see below), whose sum is σ = 522078204. Its totient is φ = 507466820.

The previous prime is 514721371. The next prime is 514721407. The reversal of 514721387 is 783127415.

It is not a de Polignac number, because 514721387 - 2⁴ = 514721371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 514721387.

It is not an unprimeable number, because it can be changed into a prime (514721327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46013 + ... + 56094.

It is an arithmetic number, because the mean of its divisors is an integer number (87013034).

Almost surely, 2^514721387 is an apocalyptic number.

514721387 is a deficient number, since it is larger than the sum of its proper divisors (7356817).

514721387 is an equidigital number, since it uses as much as digits as its factorization.

514721387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102249 (or 102178 counting only the distinct ones).

The product of its digits is 47040, while the sum is 38.

The square root of 514721387 is about 22687.4720275310. The cubic root of 514721387 is about 801.4148852121.

The spelling of 514721387 in words is "five hundred fourteen million, seven hundred twenty-one thousand, three hundred eighty-seven".