423860837 has 2 divisors, whose sum is σ = 423860838. Its totient is φ = 423860836.

The previous prime is 423860807. The next prime is 423860851. The reversal of 423860837 is 738068324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390694756 + 33166081 = 19766^2 + 5759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423860837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423860794 and 423860803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423860807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211930418 + 211930419.

It is an arithmetic number, because the mean of its divisors is an integer number (211930419).

Almost surely, 2^423860837 is an apocalyptic number.

It is an amenable number.

423860837 is a deficient number, since it is larger than the sum of its proper divisors (1).

423860837 is an equidigital number, since it uses as much as digits as its factorization.

423860837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 423860837 is about 20587.8808282931. The cubic root of 423860837 is about 751.1749506564.

The spelling of 423860837 in words is "four hundred twenty-three million, eight hundred sixty thousand, eight hundred thirty-seven".