422997877 has 4 divisors (see below), whose sum is σ = 425593120. Its totient is φ = 420402636.

The previous prime is 422997803. The next prime is 422997881. The reversal of 422997877 is 778799224.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 422997877 - 2¹⁹ = 422473589 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 (422997977) 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, 1297377 + ... + 1297702.

It is an arithmetic number, because the mean of its divisors is an integer number (106398280).

Almost surely, 2^422997877 is an apocalyptic number.

It is an amenable number.

422997877 is a deficient number, since it is larger than the sum of its proper divisors (2595243).

422997877 is a wasteful number, since it uses less digits than its factorization.

422997877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595242.

The product of its digits is 3556224, while the sum is 55.

The square root of 422997877 is about 20566.9121892422. The cubic root of 422997877 is about 750.6648191059.

It can be divided in two parts, 42299 and 7877, that added together give a square (50176 = 224²).

The spelling of 422997877 in words is "four hundred twenty-two million, nine hundred ninety-seven thousand, eight hundred seventy-seven".