42988747 has 2 divisors, whose sum is σ = 42988748. Its totient is φ = 42988746.

The previous prime is 42988717. The next prime is 42988769. The reversal of 42988747 is 74788924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42988747 - 2¹⁹ = 42464459 is a prime.

It is a super-3 number, since 3×42988747³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42988747.

It is not a weakly prime, because it can be changed into another prime (42988717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21494373 + 21494374.

It is an arithmetic number, because the mean of its divisors is an integer number (21494374).

Almost surely, 2^42988747 is an apocalyptic number.

42988747 is a deficient number, since it is larger than the sum of its proper divisors (1).

42988747 is an equidigital number, since it uses as much as digits as its factorization.

42988747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 49.

The square root of 42988747 is about 6556.5804349524. The cubic root of 42988747 is about 350.3092423349.

The spelling of 42988747 in words is "forty-two million, nine hundred eighty-eight thousand, seven hundred forty-seven".