42948487 has 2 divisors, whose sum is σ = 42948488. Its totient is φ = 42948486.

The previous prime is 42948473. The next prime is 42948491. The reversal of 42948487 is 78484924.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42948487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42948467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21474243 + 21474244.

It is an arithmetic number, because the mean of its divisors is an integer number (21474244).

Almost surely, 2^42948487 is an apocalyptic number.

42948487 is a deficient number, since it is larger than the sum of its proper divisors (1).

42948487 is an equidigital number, since it uses as much as digits as its factorization.

42948487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 46.

The square root of 42948487 is about 6553.5095178080. The cubic root of 42948487 is about 350.1998504892.

The spelling of 42948487 in words is "forty-two million, nine hundred forty-eight thousand, four hundred eighty-seven".