624161017 has 4 divisors (see below), whose sum is σ = 624218980. Its totient is φ = 624103056.

The previous prime is 624161011. The next prime is 624161047. The reversal of 624161017 is 710161426.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 88284816 + 535876201 = 9396^2 + 23149^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-624161017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (624161011) 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, 7542 + ... + 36127.

It is an arithmetic number, because the mean of its divisors is an integer number (156054745).

Almost surely, 2^624161017 is an apocalyptic number.

It is an amenable number.

624161017 is a deficient number, since it is larger than the sum of its proper divisors (57963).

624161017 is a wasteful number, since it uses less digits than its factorization.

624161017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57962.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 624161017 is about 24983.2147050775. The cubic root of 624161017 is about 854.6052311598.

The spelling of 624161017 in words is "six hundred twenty-four million, one hundred sixty-one thousand, seventeen".