422678077 has 4 divisors (see below), whose sum is σ = 424492380. Its totient is φ = 420863776.

The previous prime is 422678059. The next prime is 422678093. The reversal of 422678077 is 770876224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 211004676 + 211673401 = 14526^2 + 14549^2 .

It is a cyclic number.

It is not a de Polignac number, because 422678077 - 2⁷ = 422677949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422678057) 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, 906802 + ... + 907267.

It is an arithmetic number, because the mean of its divisors is an integer number (106123095).

Almost surely, 2^422678077 is an apocalyptic number.

It is an amenable number.

422678077 is a deficient number, since it is larger than the sum of its proper divisors (1814303).

422678077 is a wasteful number, since it uses less digits than its factorization.

422678077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814302.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 422678077 is about 20559.1360956632. The cubic root of 422678077 is about 750.4755958292.

The spelling of 422678077 in words is "four hundred twenty-two million, six hundred seventy-eight thousand, seventy-seven".