423666051 has 4 divisors (see below), whose sum is σ = 564888072. Its totient is φ = 282444032.

The previous prime is 423666043. The next prime is 423666053. The reversal of 423666051 is 150666324.

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 423666051 - 2³ = 423666043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423666053) 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, 70611006 + ... + 70611011.

It is an arithmetic number, because the mean of its divisors is an integer number (141222018).

Almost surely, 2^423666051 is an apocalyptic number.

423666051 is a deficient number, since it is larger than the sum of its proper divisors (141222021).

423666051 is a wasteful number, since it uses less digits than its factorization.

423666051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141222020.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 423666051 is about 20583.1496860903. The cubic root of 423666051 is about 751.0598650980.

The spelling of 423666051 in words is "four hundred twenty-three million, six hundred sixty-six thousand, fifty-one".