42234977 has 2 divisors, whose sum is σ = 42234978. Its totient is φ = 42234976.

The previous prime is 42234971. The next prime is 42234979. The reversal of 42234977 is 77943224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42042256 + 192721 = 6484^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 42234977 - 2¹⁶ = 42169441 is a prime.

Together with 42234979, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42234977.

It is not a weakly prime, because it can be changed into another prime (42234971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21117488 + 21117489.

It is an arithmetic number, because the mean of its divisors is an integer number (21117489).

Almost surely, 2^42234977 is an apocalyptic number.

It is an amenable number.

42234977 is a deficient number, since it is larger than the sum of its proper divisors (1).

42234977 is an equidigital number, since it uses as much as digits as its factorization.

42234977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The square root of 42234977 is about 6498.8442818704. The cubic root of 42234977 is about 348.2497024312.

The spelling of 42234977 in words is "forty-two million, two hundred thirty-four thousand, nine hundred seventy-seven".