420706 has 16 divisors (see below), whose sum is σ = 741888. Its totient is φ = 176400.

The previous prime is 420691. The next prime is 420731. The reversal of 420706 is 607024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450 + ... + 1021.

It is an arithmetic number, because the mean of its divisors is an integer number (46368).

2⁴²⁰⁷⁰⁶ is an apocalyptic number.

420706 is a deficient number, since it is larger than the sum of its proper divisors (321182).

420706 is a wasteful number, since it uses less digits than its factorization.

420706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 420706 is about 648.6185319585. The cubic root of 420706 is about 74.9306618419.

The spelling of 420706 in words is "four hundred twenty thousand, seven hundred six".