420960723 has 16 divisors (see below), whose sum is σ = 581450400. Its totient is φ = 270583040.

The previous prime is 420960721. The next prime is 420960731. The reversal of 420960723 is 327069024.

It is a cyclic number.

It is not a de Polignac number, because 420960723 - 2¹ = 420960721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420960721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67393 + ... + 73373.

It is an arithmetic number, because the mean of its divisors is an integer number (36340650).

Almost surely, 2^420960723 is an apocalyptic number.

420960723 is a deficient number, since it is larger than the sum of its proper divisors (160489677).

420960723 is a wasteful number, since it uses less digits than its factorization.

420960723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 420960723 is about 20517.3273844329. The cubic root of 420960723 is about 749.4578143630.

The spelling of 420960723 in words is "four hundred twenty million, nine hundred sixty thousand, seven hundred twenty-three".