423845077 has 2 divisors, whose sum is σ = 423845078. Its totient is φ = 423845076.

The previous prime is 423845053. The next prime is 423845087. The reversal of 423845077 is 770548324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304467601 + 119377476 = 17449^2 + 10926^2 .

It is a cyclic number.

It is not a de Polignac number, because 423845077 - 2²³ = 415456469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423845017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211922538 + 211922539.

It is an arithmetic number, because the mean of its divisors is an integer number (211922539).

Almost surely, 2^423845077 is an apocalyptic number.

It is an amenable number.

423845077 is a deficient number, since it is larger than the sum of its proper divisors (1).

423845077 is an equidigital number, since it uses as much as digits as its factorization.

423845077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 423845077 is about 20587.4980752883. The cubic root of 423845077 is about 751.1656404749.

The spelling of 423845077 in words is "four hundred twenty-three million, eight hundred forty-five thousand, seventy-seven".