42680997 has 12 divisors (see below), whose sum is σ = 61748544. Its totient is φ = 28408680.

The previous prime is 42680977. The next prime is 42681019. The reversal of 42680997 is 79908624.

It is a happy number.

It is not a de Polignac number, because 42680997 - 2⁶ = 42680933 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42680917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2788 + ... + 9650.

It is an arithmetic number, because the mean of its divisors is an integer number (5145712).

Almost surely, 2^42680997 is an apocalyptic number.

It is an amenable number.

42680997 is a deficient number, since it is larger than the sum of its proper divisors (19067547).

42680997 is a wasteful number, since it uses less digits than its factorization.

42680997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7560 (or 7557 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 42680997 is about 6533.0694929719. The cubic root of 42680997 is about 349.4713024507.

The spelling of 42680997 in words is "forty-two million, six hundred eighty thousand, nine hundred ninety-seven".