423448651 has 4 divisors (see below), whose sum is σ = 423492304. Its totient is φ = 423405000.

The previous prime is 423448639. The next prime is 423448657. The reversal of 423448651 is 156844324.

423448651 is a nontrivial binomial coefficient, being equal to C(29102, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(423448651) divides (423448651-1)³.

It is a cyclic number.

It is not a de Polignac number, because 423448651 - 2⁹ = 423448139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423448651.

It is not an unprimeable number, because it can be changed into a prime (423448657) 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, 1 + ... + 29101.

It is an arithmetic number, because the mean of its divisors is an integer number (105873076).

Almost surely, 2^423448651 is an apocalyptic number.

423448651 is the 29101-st triangular number and also the 14551-st hexagonal number.

423448651 is the 9701-st centered nonagonal number.

423448651 is a deficient number, since it is larger than the sum of its proper divisors (43653).

423448651 is a wasteful number, since it uses less digits than its factorization.

423448651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43652.

The product of its digits is 92160, while the sum is 37.

The square root of 423448651 is about 20577.8679896631. The cubic root of 423448651 is about 750.9313768301.

The spelling of 423448651 in words is "four hundred twenty-three million, four hundred forty-eight thousand, six hundred fifty-one".