42453977 has 2 divisors, whose sum is σ = 42453978. Its totient is φ = 42453976.

The previous prime is 42453937. The next prime is 42454001. The reversal of 42453977 is 77935424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36048016 + 6405961 = 6004^2 + 2531^2 .

It is a cyclic number.

It is not a de Polignac number, because 42453977 - 2⁸ = 42453721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42453937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21226988 + 21226989.

It is an arithmetic number, because the mean of its divisors is an integer number (21226989).

Almost surely, 2^42453977 is an apocalyptic number.

It is an amenable number.

42453977 is a deficient number, since it is larger than the sum of its proper divisors (1).

42453977 is an equidigital number, since it uses as much as digits as its factorization.

42453977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 42453977 is about 6515.6716461160. The cubic root of 42453977 is about 348.8505886114.

The spelling of 42453977 in words is "forty-two million, four hundred fifty-three thousand, nine hundred seventy-seven".