549640367 has 4 divisors (see below), whose sum is σ = 556597920. Its totient is φ = 542682816.

The previous prime is 549640363. The next prime is 549640373. The reversal of 549640367 is 763046945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 763046945 = 5 ⋅152609389.

It is a cyclic number.

It is not a de Polignac number, because 549640367 - 2² = 549640363 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 (549640363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3478658 + ... + 3478815.

It is an arithmetic number, because the mean of its divisors is an integer number (139149480).

Almost surely, 2^549640367 is an apocalyptic number.

549640367 is a deficient number, since it is larger than the sum of its proper divisors (6957553).

549640367 is an equidigital number, since it uses as much as digits as its factorization.

549640367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6957552.

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 549640367 is about 23444.4101439981. The cubic root of 549640367 is about 819.1426528960.

The spelling of 549640367 in words is "five hundred forty-nine million, six hundred forty thousand, three hundred sixty-seven".