361663421 has 16 divisors (see below), whose sum is σ = 420526080. Its totient is φ = 304629360.

The previous prime is 361663381. The next prime is 361663429. The reversal of 361663421 is 124366163.

It is a de Polignac number, because none of the positive numbers 2^k-361663421 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 (361663429) 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 15 ways as a sum of consecutive naturals, for example, 177410 + ... + 179436.

It is an arithmetic number, because the mean of its divisors is an integer number (26282880).

Almost surely, 2^361663421 is an apocalyptic number.

It is an amenable number.

361663421 is a deficient number, since it is larger than the sum of its proper divisors (58862659).

361663421 is a wasteful number, since it uses less digits than its factorization.

361663421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464.

The product of its digits is 15552, while the sum is 32.

The square root of 361663421 is about 19017.4504337464. The cubic root of 361663421 is about 712.4726463696.

The spelling of 361663421 in words is "three hundred sixty-one million, six hundred sixty-three thousand, four hundred twenty-one".