420792923 has 4 divisors (see below), whose sum is σ = 421224600. Its totient is φ = 420361248.

The previous prime is 420792919. The next prime is 420792937. The reversal of 420792923 is 329297024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420792923 - 2² = 420792919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420792913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214373 + ... + 216326.

It is an arithmetic number, because the mean of its divisors is an integer number (105306150).

Almost surely, 2^420792923 is an apocalyptic number.

420792923 is a deficient number, since it is larger than the sum of its proper divisors (431677).

420792923 is an equidigital number, since it uses as much as digits as its factorization.

420792923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431676.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 420792923 is about 20513.2377502919. The cubic root of 420792923 is about 749.3582201667.

The spelling of 420792923 in words is "four hundred twenty million, seven hundred ninety-two thousand, nine hundred twenty-three".