42496997 has 4 divisors (see below), whose sum is σ = 42516960. Its totient is φ = 42477036.

The previous prime is 42496981. The next prime is 42496999. The reversal of 42496997 is 79969424.

42496997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42496997 - 2⁴ = 42496981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42496999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6347 + ... + 11192.

It is an arithmetic number, because the mean of its divisors is an integer number (10629240).

Almost surely, 2^42496997 is an apocalyptic number.

It is an amenable number.

42496997 is a deficient number, since it is larger than the sum of its proper divisors (19963).

42496997 is a wasteful number, since it uses less digits than its factorization.

42496997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19962.

The product of its digits is 979776, while the sum is 50.

The square root of 42496997 is about 6518.9720815478. The cubic root of 42496997 is about 348.9683827265.

The spelling of 42496997 in words is "forty-two million, four hundred ninety-six thousand, nine hundred ninety-seven".