422807397 has 8 divisors (see below), whose sum is σ = 569012256. Its totient is φ = 279237072.

The previous prime is 422807387. The next prime is 422807401. The reversal of 422807397 is 793708224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422807397 - 2⁴ = 422807381 is a prime.

It is a super-3 number, since 3×422807397³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422807387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658258 + ... + 658899.

It is an arithmetic number, because the mean of its divisors is an integer number (71126532).

Almost surely, 2^422807397 is an apocalyptic number.

It is an amenable number.

422807397 is a deficient number, since it is larger than the sum of its proper divisors (146204859).

422807397 is a wasteful number, since it uses less digits than its factorization.

422807397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317267.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 422807397 is about 20562.2809289242. The cubic root of 422807397 is about 750.5521249998.

The spelling of 422807397 in words is "four hundred twenty-two million, eight hundred seven thousand, three hundred ninety-seven".