420079705 has 32 divisors (see below), whose sum is σ = 541105920. Its totient is φ = 312364800.

The previous prime is 420079697. The next prime is 420079711. The reversal of 420079705 is 507970024.

It is not a de Polignac number, because 420079705 - 2³ = 420079697 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684979 + ... + 685591.

It is an arithmetic number, because the mean of its divisors is an integer number (16909560).

Almost surely, 2^420079705 is an apocalyptic number.

It is an amenable number.

420079705 is a deficient number, since it is larger than the sum of its proper divisors (121026215).

420079705 is a wasteful number, since it uses less digits than its factorization.

420079705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 420079705 is about 20495.8460425521. The cubic root of 420079705 is about 748.9346087868.

The spelling of 420079705 in words is "four hundred twenty million, seventy-nine thousand, seven hundred five".