420687361 has 8 divisors (see below), whose sum is σ = 434285280. Its totient is φ = 407262912.

The previous prime is 420687331. The next prime is 420687367. The reversal of 420687361 is 163786024.

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 420687361 - 2⁷ = 420687233 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 420687361.

It is not an unprimeable number, because it can be changed into a prime (420687367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38431 + ... + 48148.

It is an arithmetic number, because the mean of its divisors is an integer number (54285660).

Almost surely, 2^420687361 is an apocalyptic number.

It is an amenable number.

420687361 is a deficient number, since it is larger than the sum of its proper divisors (13597919).

420687361 is a wasteful number, since it uses less digits than its factorization.

420687361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86735.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 420687361 is about 20510.6645674878. The cubic root of 420687361 is about 749.2955524713.

The spelling of 420687361 in words is "four hundred twenty million, six hundred eighty-seven thousand, three hundred sixty-one".