549970639 has 8 divisors (see below), whose sum is σ = 561614720. Its totient is φ = 538427736.

The previous prime is 549970607. The next prime is 549970649. The reversal of 549970639 is 936079945.

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 549970639 - 2⁵ = 549970607 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 (549970649) 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, 14259 + ... + 36100.

It is an arithmetic number, because the mean of its divisors is an integer number (70201840).

Almost surely, 2^549970639 is an apocalyptic number.

549970639 is a deficient number, since it is larger than the sum of its proper divisors (11644081).

549970639 is a wasteful number, since it uses less digits than its factorization.

549970639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50589.

The product of its (nonzero) digits is 1837080, while the sum is 52.

The square root of 549970639 is about 23451.4528121394. The cubic root of 549970639 is about 819.3066908916.

The spelling of 549970639 in words is "five hundred forty-nine million, nine hundred seventy thousand, six hundred thirty-nine".